I use Kubuntu, since I've been using KDE for 15 years. I use 5% of the configuration options — just by looking, you'd think it was a default install — but I really miss that 5% if I'm on a Mac or Windows.
Freedom to choose good components, a fanless case, and a functional OS like NixOS.
If I need a laptop for a meeting or to travel, I can either use "my" 5-year-old one, or the spare new one. Or the conference room desktop, which has a real keyboard and mouse.