How to install release and debug versions at the same time?

Question

Android

Hello.
Question about installing both release and debug versions on one device as different applications.
Signing with different keys causes the installation of one of the two applications to be blocked due to the fact that the package names are the same (com.example.app).
Signing with one key results in the replacement of one application with another.
The package name cannot be changed already, because there is absolutely no desire to mess around with Crashlytics from Fabric, Firebase and other "charms" again.
What do you advise?

Answer 1

It is not possible to install two applications at once with one package.
Either make two flavors with different packages, or install release/debug builds in turn.