They don’t “provide hooks” though, Heroic’s Galaxy integration is reverse-engineered and could break at any point that GOG update how they do things. Providing a downloadable installer is nice for some people I’m sure, but most people just want to download the game quickly and easily with features like cloud saves available.

The realistic question is how would you enforce something like that, the recent push for age verification has been terrible for privacy and security.

The problem is GOG gatekeeping a lot of indies, he even mentions it as a good thing in this very article.