Not isolated to this community either. I’ve been noticing it in a few others as well. Kinda bothersome as it snuffs out posts worth climbing to more visibility. Not sure if voting is still visible on some end, but maybe someone will look into it and figure something out eventually.

Good on you for taking one for all, lol.

Maybe it has something to do with sleeping tabs? Try disabling it and see.

Edit: I also found, at least in my case, Win11 had two Firefox processes running in efficiency mode which would kill my browsing at times. Verify that too if you can.