I am a react-native developer and this url suffix is causing downstream effects for us. See https://github.com/expo/expo/issues/31857
#YnBsaXN0MDDRAQJfEBtSZWNvbW1lbmRlZEZvckltbWVyc2l2ZU1vZGUQAAgLKQAAAAAAAAEBAAAAAAAAAAMAAAAAAAAAAAAAAAAAAAAr
I see this exact same string appended to all video urls. The string is the same across devices and apple IDs. Seeing that you have the same string appended to your url is extremely bizarre. This also only happens in iOS 18 for me.