The Epic First Run programme allows developers of any size to claim 100% of revenue if they agree to make their game exclusive on the Epic Games Store for six months.
After the six months are up, the game will revert to the standard Epic Games Store revenue split of 88% for the developer and 12% for Epic Games.
I bought Tetris Effect on it back when that game seemed to take every single exclusive offer before finally landing on steam (PS4, then Epic then Gamepass/Xbox THEN Steam) man that’s annoying. Prior I picked up Rebel Galaxy Outlaw on the cheap cheap thanks to a coupon but later got a Steam copy through a bundle.
I don’t remember when they added the cart but it’s there. I can see it right now. It works. At least when adding 2 free games at once.