REMOVE apps from APPLE TV

It was HBOMAX for me

This has worked for me hope it helps:

1. SELECT the app you want to delete, then press and hold the clickpad center (Siri Remote 2nd generation or later) or touch surface (Siri Remote 1st generation) until the app starts to jiggle.
2. Press the Play/Pause button  for more options, then choose Delete.
3. Deleting an app also deletes its data. You can download any app again that you’ve purchased on the App Store, free of charge, but the data may not be restored.