thats cool ngl
just search seytonic bluetooth on yt , you can find it preety easily ngl
https://www.securemessagingapps.com/ if you see closely for session , it says that attachments are centralized in their servers in canada
session tries to promote their oxen cryptocurrency and lokinet which imo crypto currency are used by baiters to bait people into ruining their money
you dont understand what signal /molly is , do you ? they are centralized server and OP specificially asked not centralized server / server for that matter
matrix is good but it still need server , plus matrix.org takes quite a bit of metadata
jami’s good but it uses turn server to verify your name
briar’s bluetooth functionality can be violated plus no good ui/ux
Lemmy is built upon the ActivityPub Protocol which has the flaws mentioned above Bluesky is built upon the AtProtocol which to me also looks kinda great https://yewtu.be/watch?v=wJBCpzM1VfM ;- Video that explains the difference (i just watched it minutes ago) https://atproto.com/docs ;-Docs for learning how it works
https://github.com/maltfield/awesome-lemmy-instances from this i used monyet.cc since they didn’t need email discuss.online is good as well
flatpak just makes sense imo