i'm not a diversification cuckoo, i am a hawk, i keep my eggs in one nest and i watch it real close, and put it where it's hard to get at.
 one of the rules of signals intelligence is you don't send out a message unless you want to risk it being decoded. bitwarden breaks that rule. even brave sync breaks it on the metadata side. if my devices were ONLY locating each other and not sharing any other information that would be ok for me, but then how is that any different from me managing my own backups and using the fattest pipe I can - 10gbit USB-C cable.