[itslennysfault]

Very odd. This must be some kind of Ubuntu issue. Out of curiosity I tried it in Chrome, Firefox and Safari on MacOS 15.5 and saw very little CPU usage and no difference with/without the video playing. I don't have a Ubuntu Desktop handy to confirm. Looking at the video it's nothing special. Just a fairly small mp4 using a native html5 video element to play it. Really no reason this should be causing issues.

[timeinput]

Yeah, totally agreed. It was quite surprising to me. Who knows it may even be related to the random GPU I happen to have or ....