[LevGoldstein]

I've worked in several in larger/Fortune 500 companies, including one where the desk setups were handled by a labor union, any changes required multiple approvals, and DIYing anything (using personal equipment or even adjusting the existing desk position or height) was a rules violation and prohibited. You wouldn't be able to get past security with personal equipment larger than what could fit in your pocket, and carrying so much as a monitor or laptop that didn't have a company barcode on it already would get you stopped.

So yeah, these sorts of workplaces exist and thousands of people have to contend with their on-site limitations.