Re: unpopular opinion: no, WFH and WFO are not the same.
When most of the 'benefits' of WFO are essentially down to serendipitous meetings or overhearing a conversation you aren't directly involved in, that seems to be quite a terrible way to have a business function smoothly. Yes, those things can be an occasional surprise benefit but it seems far outweighed by the massive distraction having to filter all of that, normally irrelevant, information by-product has on the task you are actually trying to complete.
Replacing the need for the accidental problem solving with better general communication and change control processes seems like it would be a better solution, but that doesn't help the facilities owner / management or insecure line managers feel like they are serving a useful purpose.