> Further there’s no App Store cut when people buy this stuff on PC.

Plenty of PC Roblox users use a version of Roblox downloaded through the Microsoft Store, whom charge a 12% cut on all money spent on gaming apps <https://learn.microsoft.com/en-us/windows/apps/publish/publi...>. The only place where no app store cut applies is when purchasing Roblox products through the non-Microsoft Store PC app or through the website. Surprise, doing this gets the user ~20% more Robux than buying through an app store <https://www.roblox.com/upgrades/robux>.

If a user buys Robux through a platform where the app store fee isn't charged, then it isn't charged to developers either because the user will receive, and thus spend, more Robux. Creator rewards work differently to ensure that developers owning experiences played primarily by app store users aren't unfairly punished by this <https://create.roblox.com/docs/creator-rewards>.