I think it's mostly people viewing the "All"/"Community" feeds. Which I feel like you have to do in general as the niche communities haven't really gotten to a self sustaining point where you can check your "Home" feed and not run out of stuff to doom scroll.

Not to mention that if you happened to mention certain things in communities that are tangentially related (Windows/Nintendo/Apple) then it usually starts another off topic discussion on linux/piracy/whatever.

Honestly the linux stuff doesn't bother me as much as every topic seemingly turning into a critique of capitalism.