You want to see those colors really pop, try the Ori games

Before you do anything, I suggest back up your data with that out of the way I have 3 suggestions

1. Just copy your entire /home folder, your configurations should just be there somewhere

2. Just slap your old ssd to the oled. This one may be a little more risky, though it is still the same aystem overall so I don’t think anything bad will happen but to be safe I’d update steam os to the latest version just to avoid any potential issue

3. Haven’t look into this yet but you can make an exact clone of your ssd content and put it in a new ssd