johnstone

Not quite what you’re asking, but I use JMP.chat. As long as there is some form of data connection (WiFi/4G/5G), desktop messaging works very well. My numbers are all now portable, usable from any device.

The service can provide a phone number, and connect it to an xmpp (jabber) server, or one is provided (Snikket) by JMP if you’re a customer. There are a few xmpp clients for Linux such as Gajim, Dino, or JMP’s own alpha PWA at app.cheogram.com. Calling from the desktop still has some hitches as some apps don’t yet support voice over xmpp, but I rarely use voice so not a big deal for my situation. Also, the Cheogram android app is excellent.

Xennial!

First computer I used in school was an Apple IIe with a 720kb, 5.25" floppy drive.

First computer at home was a Tandy 1000. Still out in the garage, I think.