Firefox no longer bypasses display power management?

Today I updated Firefox to 95 and I noticed that the screen turns off after 15 minutes of inactivity (that’s how my XFCE is setup) when watching a Youtube video. Previously that wouldn’t happen. Can anyone confirm this?

Confirm, I had to turn off the power saving settings for the screen.

not a confirmation but the opposite
for me, it never did
… watching a video while nothing is happening … is: inactivity