Peloton bike
Can you cast from a Peloton Bike to an Apple TV?
Question marked as
Peloton has an app for Apple TV (4th generation or later, tvOS 14.0 or later). You could use that directly.
From what I have seen, the Peloton Bike already has a screen on the bike. The screen on the bike is an Android tablet. It does not support AirPlay. It should support Google Cast, which could be useful if your TV supports that.