You’ve described my limited FB experience. After refusing to join FB since the 00s, I joined FB a few years ago to get better access to the Marketplace. (Craigslist has gone to shit).

I joined a few groups that interested me and then the constant political bombardment started in the more mainstream groups.

Small niche FB groups are a night and day difference compared to some of the more contemporary groups I’ve seen.

Bot algorithms definitely target large groups with lots of activity. The resulting increased activity due to algorithms just amplify it further.

I just try to stick to my smaller groups to avoid all the mess.