Apple has an Apple Pay for Donations[1] program, which doesn't apply for rent seeking entities like Patreon. I wonder if Patreon's 10% fee is commensurate with the negligible value that they provide?

[1]: https://developer.apple.com/apple-pay/nonprofits/

Yes but you cannot restrict content or features based on whether or not someone is a donor, which is basically what Patreon is for.

Source I run a non-profit and we have an app that takes donations via Apple Pay