Probably basically commercial displays but I wonder if it’s possible to buy TVs aimed for guest rooms in hotels?

Unfortunately most (bigger) services that require a phone number will almost certainly want to validate the phone number so you will need to receive a text or phone call.

Would be a nice thing to have in the spec for the cable, as those ones aren’t compliant with the spec, and can in some cases cause problems, like on disconnect it might be possible for one of the PD pins to short against one of the data pins before the side delivering power has had time to process the disconnect.

It’s a pretty specific edge case and I’m sure not a problem most people have had or will run into, but would be nice if it could be part of the spec.