RaccoonForFriendica is the most complete app ever seen for Friendica and, in addition to working with Mastodon, it might be the only app in the world capable of managing the potential of Mastodon Glitch-soc
https://www.informapirata.it/2024/10/18/raccoon-the-friendica-app-that-also-has-surprises-for-mastodon-users-automatic-translation-from-italian/
No, but there is an app for Lemmy, made by the same developer: https://github.com/LiveFastEatTrashRaccoon/RaccoonForLemmy/releases/tag/1.13.0-beta01