I think it's best to download the games directly from itch.io itself to get the full version of the gameplay and to avoid any problem with the systems. Downloading from other platforms can give rise to issues and can make your computer vulnerable, such as getting malwares or viruses. Games from unofficial platforms (cracked games) may also have limitations and other flaws.
Do you own a lot of games on itch.io? I do, and a huge amount more from past charity bundles I've yet to go and claim so maybe the Steam Deck will help me and you get through them all. Read the full article here: