I'd like to open a small window to play the GIF by scanning NFC tag, when app is unlocked. can I use app clips to realize it ?
From App Clips:
When a person installs the corresponding full app for your App Clip, the full app replaces the App Clip. From this moment on, confirming an invocation launches the full app instead of the App Clip, and a person gets the functionality of the App Clip within the full app. If they don’t install the full app, the system automatically removes the App Clip after a period of inactivity.