I don't own a lot of things, so it has to be my MacBook Air 2013. It's not a particularly powerful machine (with 4 GB of RAM I try to avoid using things like Slack), but it's been serving me well for the past 4 years. I've tried installing Arch Linux, Ubuntu, and now NixOS on it and all of those worked quite well for my needs. (Mostly Haskell and Rust stuff).