Set the Home button destination on Apple TV
Pressing the Home button once on your Siri Remote takes you to Up Next in the Apple TV App, and pressing the Home button again takes you to the Home screen.
You can change this setting so that pressing the Home button once takes you directly to the Home screen.
Change the Home button setting
Open Settings on Apple TV.
Go to Remotes and Devices, select Home Button, then select either Home Screen or Apple TV App.