Yeah that’s basically what I did too.
I just installed dash to dock and made the icons quite large, then rebound a button on my air-mouse to the super key (to bring up the dash). I also installed Just Perfection and used it to hide the top bar unless the dash is open.
90% of the time, I’m just using Firefox, so I don’t need anything too fancy.
Yeah, I played through the whole thing on my steam deck and it was mostly a great experience.
The last act was, performance wise, pretty rough though. Maybe there was some setting I could have changed to make it smoother, but the framerate was only about half what I got during the other acts.