Thanks for the update. Ringing at max is distorted still and there is a severe memory lag where you watch YouTube videos it'll play but then buffer then play again. I'm on a good broadband connection (500mb) and WiFi 6 coverage. Have cleared caches and used ex kernel manager to clear memory buffers but still the same.
If you moved already, please clean cache for device Personalization app and
make sure you have disabled Now playing under settings- display - Lockscreen.
Then your YouTube videos will be fine again..