Capacitor-community/admob v8 rewarded ad close button visible but not tappable on Samsung Galaxy A53 (gesture navigation)

Working Environment:
OS: Windows 11
Device: Samsung Galaxy A53 (gesture navigation)
@capacitor-community/admob: ^8.0.0
play-services-ads: 23.6.0
Capacitor: (check your version in package.json)
Node: (check with node --version)
Android target SDK: (check build.gradle)
Problem:
Rewarded ad plays fully, “X Reward Granted” button appears, but tapping it does nothing. Back button closes the ad but reward does not fire. Works correctly on devices using 3-button navigation but fails with Samsung gesture navigation.
What I’ve tried:
Added AdActivity to AndroidManifest with hardwareAccelerated=“true”, enableOnBackInvokedCallback=“false”, Theme.Black.NoTitleBar.Fullscreen, and tools:replace=“android:theme”
Added android:hardwareAccelerated=“true” to MainActivity
Forced play-services-ads to 23.6.0
Both event listener pattern and await showRewardVideoAd() return value pattern
Has anyone solved this specifically for Samsung gesture navigation?