To point to the elephant in the room, if we were to spell out exaclty how to spot malware, the scammers would take note and adjust accordingly. The vast majority of players does not read here, but the scammers might.
There are some general tips in the psa about try my game on discord scams. https://itch.io/t/1659440/psa-beware-the-try-my-game-scam