PieFed can group communities (including Lemmy’s federated communities) by interest, it’s just not mature enough replacement but I’d wage on it being a lot more convenient for people less knowledgeable about tech to use it than Lemmy, when it gets mature enough
I never understand people comparing Mastodon to Facebook, it feels more like a proper modern evolution of what Twitter used to be than of Facebook, you can’t have communities on Mastodon which is a key thing Facebook has that Orkut also had which when it closed down there was a huge exodus to Facebook, not to say it’s like wow so important but they both also had integrated games be that Flash games or Unity Web (no longer a thing either of the two but Flash games can be played safely through emulation with Ruffle (which is open-source) and not enough games yet but there’s ongoing QoL development for web game export with Godot) again games are not that important and communities feature is a huge thing, people using fediverse thinking who wants communities will join forumverse platforms like Lemmy is not being realistic with your target audience if you want to keep talking about exodus of all kind of people to fediverse platforms, there are a lot of people who barely understand what domains or directories are
Could you list Friendica European instances on the sidebar?
Thanks for considering it, it has features more akin to what Facebook used to be than other common Fediverse platforms, you don’t have communities per se but you can group people into a feed (maybe akin to Bluesky’s feed system where you can build custom feeds although Friendica also has group chats like Facebook’s group chats which Bluesky doesn’t AFAIK - though they do have a feature called Forums too which might be a closer approach to Facebook communities), you can communicate with people in the Fediverse (ActivityPub) and some other protocols too including Bluesky, it’s a lot more convenient than Mastodon for someone coming from Facebook not too fond of Twitter and Mastodon is more like a proper modern evolution of Twitter than of Facebook so it seems an improper replacement for common people to jump over to, there may be another Fediverse Facebook-like platform but I’m not aware of one as close as Friendica is to Facebook, you have even the events calendar which people on Facebook used a lot before they shit the feed with too many stuff not related to friends and it worked properly
You can check all feature list from their website on friendi.ca/about/features