Google Play Protect failed the real-world tests of antivirus testing lab AV-TEST. The Android built-in malware defense system failed to detect over a third of the 20,000 malware samples it was pitted against. Google’s mobile threat protection solution ranked last out of 15 Android security apps tested over a span of six months, between January to June 2021. Bitdefender, G DATA, McAfee, NortonLifeLock, and Trend Micro were the ones that hit a perfect 100% detection rate.
Source: https://www.bleepingcomputer.com/news/google/google-play-protect-fails-android-security-tests-once-more/