Starting the app from the last location

Hello everyone.
Straight to the point: Function " Launching The Last Used App Automatically" works on some apps as YouTube, Netflix and AppleTV, but it doesn’t work on other apps. I want to create a simple app (example The Analog Watch), how do i enable this function? Support said, contact the forum. I didn’t find anything like this on the Internet. Thank you in advance!
ps. I used a translator