If you have placed any ads on your app and not approved for monetization then:
- someone installs your app from play store - ads shown
- someone installs your app from other than play store - popup shown informing request for monetization approval
Else if you have placed ads on your app and approved for monetization then:
- somebody installs your app from play store - ads shown
- somebody installs your app form other than play store - ads shown
Else if you haven’t placed ads on your app then no need to request for monetization request.
Am I clear?