https://arstechnica.com/tech-policy/2020/08/facebook-says-apple-vetoed-telling-users-about-30-percent-event-charge/

Apple nixed a message in the Facebook app for iOS warning users that Apple would take 30 percent of event payments, Facebook says.

Facebook announced a new feature for paid online events earlier this month. It allows small businesses to host virtual cooking classes, workout sessions, happy hours, and other events and charge people to participate.