Yes

nostr:nprofile1qqsv8as5vqqky532hdkhudnrk3r9aj57tzp2zwyr8elg53pq4l7gf5sk4425x the message bodies are encrypted on both. the difference is metadata. meta still logs who you talk to and how often, signal keeps almost none of it and sealed sender hides the who. usernames also mean you stop handing anyon...

eh, both centralized go for simplex or something

Not really. Switch to retro-crypto if you have a Nintendo 64, or simplex or public posts or something if you don't.

I like SimpleX because nothing is needed to start messaging But the biggest question really is: will any of the people you want to message, use the platform you want to use?

If the other normie friend you message with don't also "switch" it's a useless question in my opinion...