This is not a good idea you should use app chooser to select the app since you can’t be sure that Map My Run will always be available for all users.
But you can find the app ID
Open Galaxy Store App on your phone
upper right hand corner tap on 3 dots (note if you have updates you will see a number over the dots)
tap on My Page
tap on All
find the app you want to open and tap on it
tap on the 3 dots in the upper right hand corner
send it to yourself in email
it will send the app ID
I think you can do this with any app in the store just share it.
Samsung Developer Program