I'm trying to figure that out actually. I think ideally end to end encryption is important. No mega corporations like Meta. Being able to send pictures, videos, and pdfs. Being able to have calls both voice or video. I'm not sure any messenger has all of these things, but I'm on the hunt!
You can download the most current version directly from GitHub. It's newer than the app stores. There's now a bunch of buttons including replying and up/down voting.
That's a good idea! Very neat. Also, Jerboa just released a new update that's very good. But it's not on the play store yet I don't think. I got it from gethub.
I've wondered something like this in the past. It's a super interesting theory. Especially the more you think about it. There could be a huge intergalactic society out there. But then again, we'd probably have observed something by now.
Why are you going to move? Genuinely curious.