Do Google Play subscriptions work if the application is not installed from the Play Market?

Question

Android

Please tell me more how Google Play checks if the version of the application is available to subscribe. There is a hypothesis that looks at the installer name from package info. Can it be changed somehow?
Thanks in advance for your replies.

Answer 1

installer name changes very simply
in Windows, for example, during installation, you can order on whose behalf to install the package. And absolutely any name can be registered.

adb.exe install -d -g -r -t -i com.android.vending [apk filename]

When installing from the side, the signature of the application will be different. Accordingly, payments and subscriptions will not go through. But. if GPG is hacked. Then subscriptions will pass as valid, but the player will not pay for it. Accordingly, you will not receive any money.