It's pretty easy to get this to run under linux, all you need to do is add the exe of the game to steam. Here is how you accomplish this.
Step 1. Launch Steam
Step 2, At the top of the application you want to click games then click on "Add a Non-Steam Game to My Library"
Step 3. Point Steam to the game's exe and then click add
Step 4. Go to properties and have it run with proton
Step 5. Play the game.