In a few weeks, 1% of creators already using YouTube Studio will no longer see the ‘back to Classic’ button – you’ll be notified 1st & can still access Classic features you need! This won’t apply to everyone else until early next year. More info → https://yt.be/help/a7mG
I tried to use the new streaming studio and it completely wrecked everything is set up including changing my stream key which disappeared once I'd moved away from the original setup screen. The original streaming functionality is fine please don't change it