(I am really happy paying the App Store/Play Store the commission, by the way, as they handle the global tax management - I wouldn’t want to send a tax report to every country in which some user made a $1.99 in-app purchase…)
Definitely a valid point, which is why I use Paddle on my website. 30% is still a huge fee for that, Paddle only charges 5% for example (and that includes payment processing fees).