Others mentioned good sources.
I like to install in Lutris.
If the game is not a Steam exclusive, you can get some help from Lutris-scripts, and if the game is a bit older, maybe even winehq appdb. Otherwise, ProtonDB (if the game doesn't run but the recent reviews say to just hit play, look for older reviews).
Most of the time, the issue will be .NET or vcrun (Majorgeeks AIO is easier than winetricks IMO)
Barely had issues wich FG yet. She even has instructions for Linux. Limit to 2GB RAM works almost always.
I had one game where I had to use the Lutris 7.2 runner and I had a diyferent game where a feature would only work with Proton.
Newer Codex cracks don't work.