You can add multiple Google accounts on your Android device. However, it considers the first account you sign in with as the default and uses it to sign you in across various Google apps and services.
These days, having a Google account is essential to a streamlined experience online. Think of it as your key to the most useful applications and services to date — Gmail, YouTube, Google Maps, and ...
Google’s FRP is great, but it can bring issues once you reset your Android smartphone. If you’ve added any account just to configure the phone and forget credentials and password, you’re in trouble.