Screen not staying on whilst youtube is playing a video, started after 3.5.17 update.

[Gilligan]

After I updated to the latest 3.5.17 update I have been having this problem. I use my lcd steam deck as my primary computer and I usually have it in desktop mode. Now it will not keep the screen on when YouTube is playing. It used to and as far as I can tell, keeping the screen on while a video is playing is the expected behaviour. I have changed the display timeout settings just to reapply them but that didn't change anything.
To be clear, the screen is timing out and turning off as would be expected if the system was not doing anything. Of the 2 browser's I have, it seems to be just Firefox that has problems. So perhaps it is a Firefox problem, but it changed after I updated the entire steam deck... I did make sure Firefox is updated to the latest through Discover.
Anybody else have this problem?

[Mahjik]

https://steamcommunity.com/app/1675200/discussions/1/4300445619234802773/

[RSebire]

Make sure everything you install comes from discover otherwise any update will overwrite the filesystem.

It’s a catch 22, and Valve know it.

Here’s hoping valve address the updates borking previous installs, because whilst I like the frequency of the updates, I don’t like playing Russian roulette with my Linux build.

[Gilligan]

Originally posted by RSebire:

Make sure everything you install comes from discover otherwise any update will overwrite the filesystem.

It’s a catch 22, and Valve know it.

Here’s hoping valve address the updates borking previous installs, because whilst I like the frequency of the updates, I don’t like playing Russian roulette with my Linux build.

I did install and update Firefox only through discover. It generally seems to work the best to use discover for everything. That's why I wouldn't have thought it would break.
Thank you Mahjik for the link, I see now that I was not the first one to have this problem. I guess we will have to wait for an update to Firefox.