My system only has in “Intel HD Graphics 5500” and I was able to get Age of Empires 2 Definitive Edition. the gotchas I noticed:
(1) Proton 5.13-5 will just cause the game to start and stop. So I went into advanced settings and chose the compatibility setting of Proton 5.0-10.
(2) The game seems to stutter when the beginning video starts. If I ALT-TAB between the game and desktop all of a sudden the game runs at regular speed (no stutter).
(3) I installed ‘game mode’ and then have the Steam launch option “gamemoderun %command%”.
Good luck with the game. I’m also learning my way around this too.
P.S. Other games I have working this way:
-Empire at War
-Homeworld Deserts of Karak