I remembered some more stuff epic doesn't have. Steam input and launch option customization. I can play Civ 6, a game meant for kbm, on my steam deck with the controller buttons. Epic obscures their exe files to make it hard to know which to add as a non steam game to steam.

It was annoying to go from steam with it's deep and helpful functionality to epic with what essentially just feels like the iOS appstore. I especially hate being forced to use epic online services on a game I bought ON STEAM. I couldn't play the sackboy game with a friend on steam deck because something along the way broke and epic services wouldn't let me. This game is P2P there's definitely no servers being involved so why the heck can't they just use steamworks?

Epic being unusable is a bit of an exaggeration but in terms of the platform they offer it is inferior to steam in every single way and they have done almost zero to make up the gap. Instead they pay money to keep games away from steam and force you to use their launcher in the most annoying and inconvenient way. That's why they get so much hate from people.