The Deck has become my main pc since months now. When I want to play, it’s just perfect as it has been designed for that (and yes, I do agree with the many comments about playing on the couch or bed).
But when I need to do something non-gaming related I boot from a dedicated SD card with WinasapOS where I have a full and unlocked linux OS on which I can install and run everything I need. I even occasionally run a Windows 10 VM from there when I needed to flash some peripheral’s firmware.
The Steam Deck is a quite decently powerful machine for its price, so why don’t use all its potential?
In my case this is good news as I used to play with my daughter which is using it on an Android tablet. And it’s always good to keep an eye on her as I play her games with her!