You will also get experimental bugs . Video may fail to load. The app might crash when rotating. Battery drain is common in early betas.
: Some community sites and social media bots track popular TestFlight links and alert users the moment a slot opens. Key Features to Test youtube beta testflight install
Many independent developers create specialized players (e.g., for Apple Watch or specific organization features) that do use TestFlight. These are not official Google products but are popular in the community: You will also get experimental bugs