It’s a 2015 Mac book pro that runs Monterey which still has update support. Getting new versions isn’t really important, getting support and updates is all that matters. I expect them to drop Monterey support at the end of this year which will be about a 10 yr service life. That seems pretty good to me. I have never had a windows laptop last 10yrs. And even at its age it is surprisingly pleasant to use with Mac OS.

Regarding Linux support, I started with Mint and everything works but the WiFi is a little slow. It looks like there has been some work to address that but I haven’t had time to try it out. It might be my favorite laptop I’ve ever had and it was only $100.