When I try to launch it I'm told "The application requires macOS 0.18 or later", so it seems it's reading its own version rather than reporting the actual requirement.
Thanks for that fix. I can now launch the game, but initially I encountered another error: when I launch the game I get a plain small window that says "Unable to find game!!:" However, if I launch it manually through terminal (change to the game directory, then do "./bomino.app/Contents/MacOS/bomino", I can launch and play the game. Weirdly, after I did that, I can now launch the game properly, and I don't get the "unable to find" error anymore. Maybe the manual launch set something about the path? Anyway, working now, so thanks again.
The “Unable to find game!” error is a longstanding issue with GameMaker and exporting the final app for macOS. It pops up even if the app is notarized. Moving the app to the Applications folder seems to stop the error from happening. I might try export the game as a .dmg next time to see if that makes things better.