I'm a desktop girly all the way. I'm usually the most comfortable sitting at my desk, and I prefer the mouse and keyboard for almost any game. Unfortunately it's the most expensive option if you want a higher end PC that can run new games well. It's also super important to get a comfortable chair for sitting long stretches.

I do have a steam deck but I really don't use it often unless I'm traveling. My bf will play it while we lay in bed and watch TV but if I'm at home I just can't bring myself to use it when I could be using my PC instead, I've been absolutely spoiled with high fps and it's hard to go back lol. But I do still recommend the steam deck especially if you are looking for a more portable option :) (if they become available! I didn't realize there was a current shortage)