I really wish there was a distinction between “runs well on deck” and “plays well on deck”. I know that you can connect a monitor/mouse/keyboard but I’m mainly looking for games that I can play directly on the deck so mouse-heavy games are a pass for me (occasional mouse or only in certain menus is fine but not in regular gameplay).

Thankfully protondb is an amazing resource and answers most my questions along with Steam’s “full controller support” badge. I just wish there was a simple badge that covered both. There are some “Great on Deck” games that I strongly disagree with, like Human Resource Machine. It’s a great game, I love it, but great on deck it is not. It runs fine but it needs a mouse, the trackpads are way too finicky and the text too small IMHO.