...that upload their game files in a folder and/or .zip, so that you don't even have to install them or search for saved games and stray files in the deepest corners of your computer?

I usually try out games before buying them, and go full Alestorm when the developer does heinous shit on the regular (or semi-regular, I bought Crusader Kings III but since some sexual harassment drama got uncovered at Paradox, I'll wait for them to clean up their act, and they better do so because Victoria 3 deserves to be paid for), but I'd rather keep all my game files together, so that I can uninstall everything easily - the same laptop I use to play, I use it to work, too.

IGG Games did/does that I guess, but the risk of online STDs is quite high with them.