Regardless of the specifics of that Russian demand:
I am so sick of reading this from commenters. If the 30% was necessary to cover the bills for the App Store as it is, Apple should not allow any free apps on it.
Some of the most downloaded and used apps on the app store push regular updates and make use of all of these features and are free. Apple makes nothing but the 100$ dev account fee.
Does that mean that it is ok that paid apps, even from devs way smaller than some of the corporations behind the free ones (let's say Facebook, Whatsapp, Google Maps, Tiktok, several banks etc.), cross-subsidize them? Maybe all the companies behind those paid apps should demand premium treatment from Apple as apparently they are footing the bill for the Bank of America app?
Or is this just a stupid argument that came up out of nowhere at some point and is being repeated over and over again without thinking about it for a second?