So there actually is a new physical mahjong world in vrchat again:
https://vrchat.com/home/launch?worldId=wrld_685838b2-dc34-47c7-8adf-92d5016075dc
Somehow they worked around all the sync issues with pickups and it plays pretty much identically to tanki, but with a cute autotable animation for the shuffle instead of waiting forever. Has hand sorting and discard arrangement, sanma mode, video player, etc. There's only one table (with a spectator mirror of it in another room), and no automatic scoring though.