There's a huge difference between being yourself and not having a filter.

I absolutely think people should be themselves at work. In my mind this generally means not acting like a robot or treating other people like toasters. It is psychologically crushing to operate in a they're all workplace where people do that. The best managers I've ever had were those I could discuss my emotions or that of my team with.

That said, there are clear lines about workplace decorum.

It's one thing to say " I find this new Direction very frustrating for reasons x y and z, and the team morale is low", but another thing to say "i think the new leader is a dipshit idiot"

For some reason people think being yourself means having no filter