diff --git a/core/src/components/datetime/datetime.tsx b/core/src/components/datetime/datetime.tsx
index 1ebf702c4e7..469b5d84cf2 100644
--- a/core/src/components/datetime/datetime.tsx
+++ b/core/src/components/datetime/datetime.tsx
@@ -1091,6 +1091,9 @@ export class Datetime implements ComponentInterface {
 
   connectedCallback() {
     this.clearFocusVisible = startFocusVisible(this.el).destroy;
+    this.loadTimeout = setTimeout(() => {
+      this.ensureReadyIfVisible();
+    }, 100);
   }
 
   disconnectedCallback() {
@@ -1098,9 +1101,7 @@ export class Datetime implements ComponentInterface {
       this.clearFocusVisible();
       this.clearFocusVisible = undefined;
     }
-    if (this.loadTimeout) {
-      clearTimeout(this.loadTimeout);
-    }
+    this.loadTimeoutCleanup();
   }
 
   /**
@@ -1151,6 +1152,13 @@ export class Datetime implements ComponentInterface {
     });
   };
 
+  private loadTimeoutCleanup = () => {
+    if (this.loadTimeout) {
+      clearTimeout(this.loadTimeout);
+      this.loadTimeout = undefined;
+    }
+  };
+
   componentDidLoad() {
     const { el, intersectionTrackerRef } = this;
 
@@ -1198,7 +1206,10 @@ export class Datetime implements ComponentInterface {
      * we still initialize listeners and mark the component as ready.
      *
      * We schedule this after everything has had a chance to run.
+     *
+     * We also clean up the load timeout to ensure that we don't have multiple timeouts running.
      */
+    this.loadTimeoutCleanup();
     this.loadTimeout = setTimeout(() => {
       this.ensureReadyIfVisible();
     }, 100);
diff --git a/core/src/components/datetime/test/basic/datetime.e2e.ts b/core/src/components/datetime/test/basic/datetime.e2e.ts
index 3514bc9cf2c..cdc07c504da 100644
--- a/core/src/components/datetime/test/basic/datetime.e2e.ts
+++ b/core/src/components/datetime/test/basic/datetime.e2e.ts
@@ -444,6 +444,43 @@ configs({ modes: ['md'], directions: ['ltr'] }).forEach(({ title, config }) => {
 /**
  * This behavior does not differ across modes/directions.
  */
+
+configs({ modes: ['md'], directions: ['ltr'] }).forEach(({ title, config }) => {
+  test.describe(title('datetime: month picker selection'), () => {
+    test('datetime: month picker selection', async ({ page }) => {
+      await page.setContent(
+        `
+        <ion-datetime value="2022-05-03"></ion-datetime>
+      `,
+        config
+      );
+
+      await page.locator('.datetime-ready').waitFor();
+
+      const nextMonthButton = page.locator('ion-datetime .calendar-next-prev ion-button').nth(1);
+      const monthYearButton = page.locator('ion-datetime .calendar-month-year');
+
+      await expect(monthYearButton).toHaveText(/May 2022/);
+
+      await nextMonthButton.click();
+      await expect(monthYearButton).toHaveText(/June 2022/);
+
+      await nextMonthButton.click();
+      await expect(monthYearButton).toHaveText(/July 2022/);
+
+      await monthYearButton.click();
+      await page.waitForChanges();
+
+      const selectedMonthOptions = page.locator('.month-column ion-picker-column-option.option-active');
+      await expect(selectedMonthOptions).toHaveCount(1);
+    });
+  });
+});
+
+/**
+ * This behavior does not differ across
+ * modes/directions.
+ */
 configs({ modes: ['ios'], directions: ['ltr'] }).forEach(({ title, config }) => {
   test.describe(title('datetime: visibility'), () => {
     // TODO FW-6015 re-enable on webkit when bug is fixed
diff --git a/core/src/components/picker-column/picker-column.tsx b/core/src/components/picker-column/picker-column.tsx
index 6eb4241eac7..2411ef2d6cc 100644
--- a/core/src/components/picker-column/picker-column.tsx
+++ b/core/src/components/picker-column/picker-column.tsx
@@ -1,7 +1,7 @@
 import type { ComponentInterface, EventEmitter } from '@stencil/core';
 import { Component, Element, Event, Host, Method, Prop, State, Watch, h } from '@stencil/core';
 import { doc } from '@utils/browser';
-import { getElementRoot, raf } from '@utils/helpers';
+import { raf } from '@utils/helpers';
 import { hapticSelectionChanged, hapticSelectionEnd, hapticSelectionStart } from '@utils/native/haptic';
 import { isPlatform } from '@utils/platform';
 import { createColorClasses } from '@utils/theme';
@@ -123,9 +123,7 @@ export class PickerColumn implements ComponentInterface {
          * Because this initial call to scrollActiveItemIntoView has to fire before
          * the scroll listener is set up, we need to manage the active class manually.
          */
-        const oldActive = getElementRoot(el).querySelector<HTMLIonPickerColumnOptionElement>(
-          `.${PICKER_ITEM_ACTIVE_CLASS}`
-        );
+        const oldActive = el.querySelector<HTMLIonPickerColumnOptionElement>(`.${PICKER_ITEM_ACTIVE_CLASS}`);
         if (oldActive) {
           this.setPickerItemActiveState(oldActive, false);
         }
diff --git a/core/src/components/tab-button/test/states/tab-button.e2e.ts b/core/src/components/tab-button/test/states/tab-button.e2e.ts
index bd10cad844b..5af2a6f660b 100644
--- a/core/src/components/tab-button/test/states/tab-button.e2e.ts
+++ b/core/src/components/tab-button/test/states/tab-button.e2e.ts
@@ -80,3 +80,25 @@ configs({ modes: ['ios'], directions: ['ltr'] }).forEach(({ title, screenshot, c
     });
   });
 });
+
+configs({ palettes: ['dark'], directions: ['ltr'] }).forEach(({ title, screenshot, config }) => {
+  test.describe(title('tab-button: states in dark palette'), () => {
+    test.describe('focus', () => {
+      test('should render correct focus state in dark palette', async ({ page }) => {
+        await page.setContent(
+          `
+          <ion-tab-bar style="width: 300px">
+            <ion-tab-button href="#" class="ion-focused">
+              <ion-label>Favorites</ion-label>
+            </ion-tab-button>
+          </ion-tab-bar>
+        `,
+          config
+        );
+
+        const tabBar = page.locator('ion-tab-bar');
+        await expect(tabBar).toHaveScreenshot(screenshot('tab-button-focus'));
+      });
+    });
+  });
+});
diff --git a/core/src/components/tab-button/test/states/tab-button.e2e.ts-snapshots/tab-button-focus-ios-ltr-dark-Mobile-Chrome-linux.png b/core/src/components/tab-button/test/states/tab-button.e2e.ts-snapshots/tab-button-focus-ios-ltr-dark-Mobile-Chrome-linux.png
new file mode 100644
index 00000000000..14d96bb1365
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diff --git a/core/src/components/tab-button/test/states/tab-button.e2e.ts-snapshots/tab-button-focus-ios-ltr-dark-Mobile-Firefox-linux.png b/core/src/components/tab-button/test/states/tab-button.e2e.ts-snapshots/tab-button-focus-ios-ltr-dark-Mobile-Firefox-linux.png
new file mode 100644
index 00000000000..841928b47fa
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diff --git a/core/src/components/tab-button/test/states/tab-button.e2e.ts-snapshots/tab-button-focus-ios-ltr-dark-Mobile-Safari-linux.png b/core/src/components/tab-button/test/states/tab-button.e2e.ts-snapshots/tab-button-focus-ios-ltr-dark-Mobile-Safari-linux.png
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index 00000000000..86b46f9a31f
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diff --git a/core/src/components/tab-button/test/states/tab-button.e2e.ts-snapshots/tab-button-focus-md-ltr-dark-Mobile-Chrome-linux.png b/core/src/components/tab-button/test/states/tab-button.e2e.ts-snapshots/tab-button-focus-md-ltr-dark-Mobile-Chrome-linux.png
new file mode 100644
index 00000000000..e12f984796d
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diff --git a/core/src/components/tab-button/test/states/tab-button.e2e.ts-snapshots/tab-button-focus-md-ltr-dark-Mobile-Firefox-linux.png b/core/src/components/tab-button/test/states/tab-button.e2e.ts-snapshots/tab-button-focus-md-ltr-dark-Mobile-Firefox-linux.png
new file mode 100644
index 00000000000..b0f8f6eb547
Binary files /dev/null and b/core/src/components/tab-button/test/states/tab-button.e2e.ts-snapshots/tab-button-focus-md-ltr-dark-Mobile-Firefox-linux.png differ
diff --git a/core/src/components/tab-button/test/states/tab-button.e2e.ts-snapshots/tab-button-focus-md-ltr-dark-Mobile-Safari-linux.png b/core/src/components/tab-button/test/states/tab-button.e2e.ts-snapshots/tab-button-focus-md-ltr-dark-Mobile-Safari-linux.png
new file mode 100644
index 00000000000..db7b8937ec0
Binary files /dev/null and b/core/src/components/tab-button/test/states/tab-button.e2e.ts-snapshots/tab-button-focus-md-ltr-dark-Mobile-Safari-linux.png differ
diff --git a/core/src/css/palettes/dark.scss b/core/src/css/palettes/dark.scss
index 1d154358b00..cebeb7de1ca 100644
--- a/core/src/css/palettes/dark.scss
+++ b/core/src/css/palettes/dark.scss
@@ -135,6 +135,7 @@ $colors: (
     --ion-text-color-step-900: #1a1a1a;
     --ion-text-color-step-950: #0d0d0d;
     --ion-item-background: #000000;
+    --ion-tab-bar-background-focused: #252525;
     --ion-card-background: #1c1c1d;
   }
 
@@ -192,6 +193,7 @@ $colors: (
     --ion-item-background: #1e1e1e;
     --ion-toolbar-background: #1f1f1f;
     --ion-tab-bar-background: #1f1f1f;
+    --ion-tab-bar-background-focused: #353535;
     --ion-card-background: #1e1e1e;
   }
 }
diff --git a/core/src/css/palettes/high-contrast-dark.scss b/core/src/css/palettes/high-contrast-dark.scss
index 2cfa3169550..ba5dc705b9d 100644
--- a/core/src/css/palettes/high-contrast-dark.scss
+++ b/core/src/css/palettes/high-contrast-dark.scss
@@ -127,6 +127,7 @@ $lightest-text-color: $text-color;
     --ion-text-color-rgb: #{color-to-rgb-list($text-color)};
     --ion-item-background: #000000;
     --ion-card-background: #1c1c1d;
+    --ion-tab-bar-background-focused: #252525;
 
     /// Only the item borders should increase in contrast
     /// Borders for elements like toolbars should remain the same
@@ -193,6 +194,7 @@ $lightest-text-color: $text-color;
     --ion-item-background: #1e1e1e;
     --ion-toolbar-background: #1f1f1f;
     --ion-tab-bar-background: #1f1f1f;
+    --ion-tab-bar-background-focused: #353535;
     --ion-card-background: #1e1e1e;
 
     /// Only the item borders should increase in contrast