Re: "where guests can reasonably expect privacy expectations"
Uuuum Pascal:
Depending on *where* you're staying there are cameras (usually quite a few) in the lobby, elevators, corridors, stairwells, pools and garage, and pretty much every square inch of exterior grounds.
I will note that that vast majority of those hotels and motels that do this are very much unlikely to publish any of those images they collect on anything like their webpages or social media profiles *without* at least asking permission, usually politely and by tossing you an upgrade. (I have had that joy, once, long ago, pre soc-med, but for the Travel agency website)
I've seen even fairly scruffy off main track motels with more camera coverage than your average shopping mall.
The *issue* with AirBnB was that while the legal entity permitted cameras indoors on the provider's properties, for the provider's personal comfort, security and whatnot, they discovered that the world is full of perverted SoB's that seem to think that they can get away with violating their tenant's privacy, personal space, personal security and safety by installing cameras in places they had no permissions for and then subsequently publishing those images to places like PornHub, the dark web and various other image sharing sites of spectacularly questionable integrity.