What is the rationale for signing apk with all schemes under MASTG-TEST-38? [closed]

Under OWASP MASTG-TEST-38, what is the rationale for

Make sure that the release build has been signed via … all the
three schemes for Android 9 (API level 28) and above, and that the
code-signing certificate in the APK belongs to the de… Continue reading What is the rationale for signing apk with all schemes under MASTG-TEST-38? [closed]