Find my mobile

In GWS there was option to put action that double tap find my mobile start to work, in WFS I cant find this options…
i add screenshot from GWS

In GWS it was easy to do this because the watch faces only ran on Galaxy Watches but with Watch Face Studio the watch faces are made for all watches running Wear OS 3 and now Wear OS 4. So they can’t know what is installed.

However you can set an action on a button or text box and select a custom ID if this is for your personal use.
Try running simple adb commands

adb connect (your watch IP address & enable debugging)
adb shell
pm list packages

You will get an output list like this

The app ID is after package:

go to Play Store and download the Package names app . open it and you will see the apps that are installed on your phone.

Samsung Developer Relations