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.
Well as the saying goes, ignorance is bliss. Honestly, I think its healthy to takes breaks from the news and social media if world news is getting you down, just focus on the things that you can control in your life.