Seeing your post made me wonder what games on Steam has the most achievements. A quick search, and apparently there are games with literally thousands of achievements! My mind is blown... Apparently the game with the most is (Or was? Article I found was last updated in 2024...) just short of 10k achievements!
Are any of them fun? Probably not. Most of them seem to be of the "Leave your computer idle while you go do something else"-type "games" that just grants achievements over time. At least the 10k one seemed to have some sort of gameplay to it. Are there benefits to getting a ton of achievements on Steam?