Many workplaces already require MDM for devices. Some don’t allow unmanaged onsite devices at all. It just depends on the sensitivity of the work. Maybe you haven’t been onsite at a defense contractor or a large financial firm, it can get very restrictive and you basically sign over a lot of your rights to work there.

> Well the problem with that is it would bar required phones and other devices.

That’s the point. Nothing goes in or out except through tightly controlled channels. SCIFs aren’t theoretical, they are in frequent use especially for anyone touching classified info. Large enterprises sometimes use similar facilities as needed for highly sensitive meetings where they can’t afford for anything to be leaked.

Sure, but we're discussing "the office". I can imagine this ban workplaces that aren't highly security concious.

I imagine that some workplaces will have to become more security conscious, and others (in two-party states) will have to make it clear to employees that recording without permission from others is illegal and the company will both sue and file charges.