Yeah, it's also ignoring that the issue with Apple's "30% cut" isn't that they take 30% of game sales. It's that they're forcing you to use their payment processing service to put an app on the store, and then they take a 30% cut out of that, even though third-party payment processing providers take much smaller cuts than that.

Physical stores also took a 30% sales cut, because there's value in getting people to see your product. It's literally been the standard storefront cut for decades. Microsoft and Sony take the same cuts for their console sales/transactions.

Valve does a lot more for companies than just put eyes on their games, too. They're pushing for Linux-compatibility with Proton, they provide you with networking libraries and infrastructure for multiplayer servers if you use SteamWorks, Steam will optionally update your game's SDL libraries so you have up-to-date controller bindings, etc. It's not like they're sitting there twiddling their thumbs and taking 30% of your money for nothing.

I'd argue Microsoft and Sony do comparable work for devs on their platforms too.

The whole argument against the 30% cut is so fucking dumb.