Comment by d--b

You can tell your manager anything as long as you prepare the landing. "There is something that is bothering me, yada yada, I've been thinking about it for a while, yada yada, I don't know if this concern will be well received, yada yada, I find our meetings to be inefficient". And slooooooooowly you get to say things like "for lack of a better word: corporate bs".

The worst that could happen is you get fired of course, did you expect anything more serious could happen?