Shot on a phone, on purpose.
Every frame is captured on a mobile device and edited to the same standard you would expect from a full camera setup. That is a choice, not a shortcut. A phone gets close, moves fast, and does not make anyone freeze up the way a rig in their face does.
What you get back is already the right shape for where it is going: vertical, paced for a feed, and ready to post rather than ready to be re-edited.