Instead of submitting an app in the Template Store, you can simply allow users to copy the app right from the play page. This allows you to copy an app to another person's account or share your app as a starting point for others to make into their own.
When they copy your app, users will get an exact copy of your app in their Glide account and an exact copy of the underlying sheet in their Google account.
You can enable this in Settings/Privacy:
Once you've enabled is - users will see this button when they visit the app on Desktop.