Okay so I bought Wizards of Alamar.

I downloaded and installed the itch.io app.

I installed Wizards of Alamar from the app to my Linux computer.

I tried to launch it from the app...

I got a crash report. The first thing that stuck out to me was it saying I needed to buy the game before I could run it.

I filled out the crash report, I've received no info since.

I came into the forums hoping to find answers. But where do I look for answers regarding playing rather than developing games?

I'm posting this here because I can't find any of the forums that seem appropriate or have similar posts.

For individual games, ask in that game's comment section or community, as the case may be. Wizards of Alamar for instance has a community. Other games don't, but list other means to contact the creators. If a game has neither, then it's okay to ask in General Discussion. But then at least link to the game so people don't have to to searching and guessing.

Edit: if you suspect the Itch.io app is at fault (rather than the game), then ask here or in Itch App Development. But check with the creators too, just in case.