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.

I just looked it up, there are videos with rodent-chewed pex, I had no idea it’s possible.

Makes one wonder what’s the purpose of life for the generation that doesn’t have computers

PEX

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!