Oh yes the 2.0 was also great! They added the rewind feature which is pretty cool.
Both of them can work on the steam deck, though they don’t out of the box.
For dirt you have to add a launch option WINE_CPU_TOPOLOGY=4
https://github.com/Open-Wine-Components/umu-protonfixes/issues/328
And for dirt 2 you need to add a fix for Xbox live.
https://www.reddit.com/r/SteamDeck/comments/10ehkot/has_any_one_gotten_colin_mcrae_dirt_2_working/
https://github.com/ThirteenAG/Ultimate-ASI-Loader/releases/download/Win32-latest/xlive-Win32.zip

I’m running the official steamOS on an AMD computer (cpu+gpu) and it works great. Sometimes switching between desktop and gaming mode messes up the audio (no audio) but I use desktop mode rarely so it’s a non issue to me. I can always fix it by manually reconfiguring the audio output device or restarting the computer. It’s a great experience otherwise :)