There's a new instance at https://pathfinder.social/ that calls itself "A place for people to discuss Pathfinder and Starfinder tabletop RPGs".
It has a [[email protected]](/c/[email protected]) for PF2e discussion similar to this community. I'm not sure which will get more traction, but I'm subscribing to both for now. There are also lots of other granular roleplaying communities for pf1e, starfinder, art, and general discussion. They're all pretty empty so far as it seems very new, and I suppose the danger of all that granularity is that each community individually seems dead. But it also feels like a nice topic layout and maybe the topic-oriented instance will make it feel like a community of communities where people sub to a bunch of them all at once. That's what I just did.