TL;DR:

Supported Environments for reCAPTCHA Mobile Verification:

• Android Devices:
  • Google Play Services version 25.41.30 or greater.
  • To verify Google Play Services version on an Android device, open Settings > Apps > All Apps > Google Play Services
• iOS/iPadOS devices for QR Code Scan:
  • Version 15.0 or greater.
• iOS/iPadOS devices for “Click to Verify” Button:
  • Version 16.4 or greater.
  • Version 15.0-16.4 with the reCAPTCHA app installed.

Fuck Google