The npub120zh308gs69j3vwgvvrzgglv58vsk3q0vef43uajyu0lc3mtldsq2p33r2 (npub120z…33r2) Groups feature has been ready but unshipped for over 2 years now
I will be shipping the Groups beta ASAP (without federation initially) and will work out federation and UI improvements along with community feedback afterwards.