I feel like 75% of Mastodon are people talking about Linux. If you don’t care about Linux you feel alienated. I enjoy Mastodon and Lemmy, but the lack of more diverse subjects gets to me if I browse for too long.
Update: I took your advice and purchased a laptop for Linux, and now I care about it! Problem solved.
Idk i personally don’t care about Linux and I find there are plenty of active communities that are unrelated to Linux. My method of finding active decent communities is just sorting by most active communities and subscribing to the ones that interest me.