From the place I still use as they didn’t move, I haven’t seen a single mentioning of Lemmy, fedivers, black out or anything close. Makes sense as those communities didn’t even try moving.

In one of the subs I did notice a quality decline and it moving a bit from, people talking about shared experiences with a medical condition, to being babys first experience with medical condition, but it has moved back even so slightly, but the average age seems to have gone down.

The other one for a game. I can proudly say is just as low quality as before, but I stick around to give tech support, even if it of the absolute most basic nature sometimes, and keep up with updates, bugs and community fixes.