This has changed my life. By using ATVs for my main television displays in the different levels of my house, my iPhone has become the best universal remote I’ve ever had. And I can access the remote by a 2 second button press. The Apple TV remote even selects the room I am in by itself!! This is my forever Action Button setting.
You could further expand this with a Home or Away specific Focus Mode or a Wifi check before opening remote so the button stays useful outside of the house