My boss had a KYC experience that involved uploading a short selfie video in which he had to turn his head/blink, smile, etc. This was recently, and in addition to the "photo of yourself holding a document with your photo in it" check.

I don't know enough about GenAI or the KYC process to say whether or not that could be faked, but I'm confident saying that with only traditional tools it's a barrier that would stop all but the most sophisticated actors.