I like this question. Why would a person stop paying for something that doesn’t fully suit their basic needs? Obviously if a configuration that worked didn’t exist at WeWork, surely it couldn’t exist anywhere at all?
The OPs ask is a very specific niche - conference rooms that can be used for highly confidential meetings. Even in a typical SV open office, most office rooms have glass walls which do not provide the confidentiality the OP seeks. Maybe few “exec rooms” will have that.
This illustrates why I like the question!
An office environment that includes even slightly private conference rooms is literally unthinkable.
I’m assuming maybe they have luxuries like that in the Pentagon and Cheyenne Mountain, but to picture a conference room that doesn’t require huddles and whispers in the same building as desk space is exactly the same as picturing tooth paste that serves the function of coffee. At worst it doesn’t exist at all or at best it’s a silly curio borne from a mad man’s flight of fancy.
Quite the opposite! If WeWork doesn’t offer conference rooms with any smidgeon of privacy, then that’s simply not something that’s offered anywhere else. This fact is the basis of why your original question was a good one: Why would anyone stop paying WeWork?
Perhaps given the lack of privacy in any conference rooms anywhere, GP simply retired from professional life altogether. This may be the only compelling possible reason to stop paying WeWork for their service of providing some but not all of their basic business needs.