It's pretty wild here now, that's for sure. I think it wasn't that bad even on reddit
Most common are probably issues with login screen, e.g. not updating it, not showing login field input. I use x11+kde, same as it was on manjaro
bbcgoodfood.com is another good one I check often
you'd still want a private insurance plan
Not sure how lemmy implements this, but I suppose it's not a trivial task in such decentralized environment. Imagine 10 users from instance A subscribed to instance B and then instance A went permanently down. If B holds number of subscription requests it's now out of date. If B has to poll every instance it's federated with it's additional arguably unnecessary load. So yeah local subscriptions are a low hanging fruit. I guess one way to solve it is to have some independent authority that keeps track of sub counts in case those are (made) public and queryable
The numbers are self reported by hamas anyway, so the real number is likely even lower than that.