I encountered this for the first time today while attempting to read something on archive.today.

I confirmed that decoding the qrcode using a computer and following the URL it contains is insufficient; the error it gave directed me here which is what the linked screenshot is of.

The old type of captcha remains available too, for now:

screenshot of text: Important: Mobile verification for Google Cloud Fraud Defense is an experimental challenge type in Preview. Visual and audio challenges are available as alternatives for users who can't complete mobile verification. To use them, click the Visual or Audio buttons.

OC writeup by @[email protected]