I use it as daily driver. I have a JSAUX dock with ssd for home, I unplug and bring it with me to university and use it with a bluetooth folding keyboard and house I got for <50$.
It does everything I need. I’m a CS Major and “Boxes” works well for any sandbox environment I need.
If you’re super technical, some thing in SteamOS can limit you, like how system files are on their own partition that gets wiped every update. But it’s perfectly doable