I saw this coming the moment the realms profanity filter feature was introduced.
It very much seems like it could be heavily abused, and it honestly seems like a MASSIVE overreach on Microsoft’s part. For now, individual servers might be able to disable it, but I don’t know if this will stay forever.
Most of the details behind it are being hidden, so..
Personally, I will only be playing on servers/versions this is disabled on entirely playing online. So, basically no 1.19+ personally.