I believe in the title I originally saw, it specified "exchange fees".
But also from the tweet thread (second tweet):
> Apple’s claim is that the gas fees required to send NFTs need to be paid through their In-App Purchase system, so that they can collect 30% of the gas fee.
I'm not actually sure about this because it's their Wallet app rather than the trading app. If they obfuscate the gas fee behind their own transaction fee the way they do with their trading app, I believe my take is correct.
Otherwise, it actually seems way more open for debate. It's possible I am mistaken and this is a reach from Apple. It might also be that Apple is claiming that Coinbase needs to obfuscate the fee in such a manner, which sounds kinda crazy to me.
At any rate, this confusion about it being the assets themselves being cut is what I intended to be speaking about, so apologies if this response is not helpful.