Yes, definitely! I use it as much as possible, though there are certain times (especially at work) where I have to use or support Windows or MacOS.

My daily driver for personal use is Linux (using Cinnamon Mint right now), my main browser is Firefox, and I won’t deny I’ve spent a decent amount of time playing Luanti (would recommend). I’ll also admit I still use plenty of closed source software even in my personal life (mostly Steam, which runs great on Linux).