Most clients also offer OpenPGP which has the properties you are looking for.

Are you talking about omemo and a scenario where you buy a new device and want to sync your entire history from the server?

Rocketgit is extra fast

Symfonium looks amazing except for the part where you need a google play account to use it. It literally has every feature I've been looking for.

If high speed rail becomes popular, all that stands between the current freedom and ID-required tickets and fingering by agents is one terrorist attack, staged or not.

I understand your point but come on, basic stuff has been implemented in a thousand libraries. There you go, a macro implementation

Me? XMPP.

Most used? Depends in what circles. Telegram is popular in some. SimpleX and Session in others. XMPP in free software circles. Matrix in others.

Works very well on rpi4 8GB with pruned chain stored on ssd. p2pool runs on the same machine.

Running a full node also helps the network even if you don't mine.

And you can't make noise like he did at 6am

Oh, from the same people who want you to install a mandatory app to access half of the internet? I'll pass

Do you mean you'd be linked to potential crimes of the previous owner? Well yeah there's a slim chance but then you show authorities a proof of purchase.

Or if you mean your personal privacy, that's non existent at the moment you connect to a cell network with a registered sim

If you use Linux in English, en-CA is also the best locale to use, it has 24 hour time, metric units and simplified (american) language. They will conquer the world with convenience!