Reddit users thevincentasteroid and MMD3_ posted about an auto-playing video ad (with sound) on the home screen. The ad is for Chicken Tender Wraps from Carl’s Jr. When it begins auto-playing, it pushes all the other UI elements out of focus and goes almost full-screen, returning to the home screen after it has played through once.
The only app I’ve run into without an official Apple TV flavor is Jellyfin, but there are two alternatives in the app store.
Unsure if there is anything like new pipe that can eliminate YouTube ads on Apple TV but that’s really nice too.