8.16.0 Sluggish and laggy UI - On Sony A8H / XH 95 OLED & Philips 805 OLED

Plex Players Smart TVs
31

I have the exact same thing on my Philips 58PUS7304 (which I checked is updated to the latest software). Plex App is on version 8.17.1.25326.
Edit: Android TV/Play Store says no updates are available at the moment.