https://www.youtube.com/watch?v=BC79dQ0f-g8

Many Android phone users don't usually bother about their Play Protect certification until maybe they run into problems like, searching for Netflix on Google play store and not seeing it.
Other noticeable problem could be try to watch DSTV NOW app from your Android phone but playback is unavailable (see attached images)

Any Android device that has unlocked bootloader, Rooted, or somehow virus entered the phone and gained system access will not pass Google's SafetyNet Security Test. Google has in 2021 doubled down in system integrity and security. With hardware-backed attestation, combined with phone model's fingerprint release keys and signature, more Android phones are now failing SafetyNet test which means device is not certified.

Please not that Android phones that are Chinese version will fail SafetyNet test even if the system is intact because phones made in China does not carry Google GMS or any Google certification or apps.
So, be careful if you are buying Android phone very cheap. Check if it can pass SafetyNet test as shown in the video.

NB. This method requires Rooting your Android device. It is only with Root (Admin) access that you can fix this problem permanently.
Let me know in the comments section if you want to give is a try.