Also note that Keychat.io and 0xchat.com are additional Nostr clients running MLS implementation, and a little more battle-tested than White Noise. Keychat.io has its own spec and takes its own approach vis a vis some of the points mentioned, and as of now is more robust compared to White Noise (at least in my testing).
Discussion
is nostr:nprofile1qqs9ajjs5p904ml92evlkayppdpx2n3zdrq6ejnw2wqphxrzmd62swspr3mhxue69uhkummnw3ezucnfw33k76twv4ezuum0vd5kzmqpzamhxue69uhhyetvv9ujuurvv438xarj9e3k7mgr59egd in a different implementation of MLS from WhiteNoise?