Steam

Steam is just perfect at keeping the gamers behind them as they are only assholes behind doors to the Devs on their platform.

30% is an absurd cut for a store that has such a monopoly that if you don't release there your game is pretty much cancelled even if you release at your own store without DRM and with additional goodies (Looking at GOG and The Witcher - they released the Gwent standalone like a year later on steam because it didn't sell at all on GOG and then it apparently outsold the GOG version without a week)

People are just too lazy and Steam is keeping them happy enough to not bother looking another way.

Epic isn't a good guy in any case but the exclusive deals on AAA Games they do is probably the only way to get someone to buy the game there instead of Steam