You could take a video (and, at minimum, you probably should, no matter who you’re renting from)

Absolutely. This is a required step for renting cars these days - get your phone out, and do a complete walk-around, as well as taking video of the interior. Make sure you record the gas level & the odometer as well.

developers have actually built scanning apps that leverage machine learning of their own to identify and validate differences in before-and-after photos. One such startup is Proofr, whose app is currently live on Apple’s App Store. We have not used Proofr in such a capacity

Weirdest ad I've seen today.