Depends on the company, obviously. I don't care if employees do whatever on work computers, I care about protecting my network and my users.
In practice, all of this attempt to bypass middleboxes does not help my users browse securely. It makes it harder to block ads, it makes it harder to detect phishing sites and other threats, and that's about it.
In practice, all of this attempt to bypass middleboxes does not help my users browse securely. It makes it harder to block ads, it makes it harder to detect phishing sites and other threats, and that's about it.