In my experience this mods basically are for the pirated.. oh.. I mean retail version of the games.
Installing these on legit copies, aka steam versions, is a pain in the ass.
ENB broke my GTA install.. followed their "steam instructions" to a T.. everyone on the internet, to me.. clearly pirated the game to play it.
I'm a PC gamer, and WISH I could enjoy these mods.. but I'm honestly not convinced they are worth the time. Too many broken installs.. even Steamworks stuff is littered with the need to download and install specific versions of 3rd party utilities.. "This needs scriptwidget 1.23.34.2 not 1.3.4.2.4".. oh and "It'll break your saves" stuff.