I know this has been mentioned a few times, but I have to say with my RPI3's which I upgraded to the latest 9.x.x streams, when playing 1080p and even sometimes 720p video streams, getting the little temperature alert icon flashing in the right of the screen......
CPU got upto 80c last night while trying to render a video.
Never had the issue when on the 8 stream..... Any tips of getting around this? on the RPI3's and also the RPI4 (4gb) which I am about to upgrade too?
or will I now have to start looking for heat syncs, and airflow for the RPI's now too? I'd prefer not to if I can help it