6 months ago, it's "we want to scan all devices for CSA media", 2 months ago, "we want to scan all devices for DRM", now, "we want to scan all devices for phishing"
They're just rebranding the same thing over and over till nobody says anything... Get ready for it, guys, the end of privacy is here.
With Google owning VirusTotal and having Google Project Zero, I'm surprised Google doesn't have its own equivalent to Windows Defender. AFAIK, Play Protect isn't really that good at spotting malicious apps.
Microsoft Defender for Android (through Microsoft 365) is there for anyone paying for 365. IIRC, T-Mobile customers get Lookout Premium for free.