Makes no difference. The only way I anx my wife (both a50s) can use WhatsApp video call is either on mobile data or by resetting the router.
Really disappointed that this update has caused problems and all the offered solutions by WhatsApp, android and everywhere else on the Internet basis say clear the cache, reset/reinstall the app or turn it off and on again. Nothing provides a longer turn fix. All because of of an Android 11 update.