I tried to search the forum for "bad feedback" "wrong feedback" etc. but could not really find something applicable,
Here is the thing: How do you deal with wrong feedback from your boss?
I would like to put aside the possibility that my assumption of "wrong" feedback from your boss is wrong. Except, if you tell me that feedback from the boss is always right, which I find difficult to believe as everybody makes mistakes, right? If boss's feedback is always right however, I would love to hear an explanation.
One example for wrong feedback from your boss might be this:
Let's assume you are responsible for completing two high-priority tasks in week x, that came up on short notice and that take up all your time. Your boss knows about it and encourages you to focus on these two tasks and leave aside "unimportant" stuff. After you successfully completed both tasks just in time and even your boss's boss is happy about what you achieved, you get feedback from your actual boss that you forgot to do three other, lower-priority tasks that you know are currently neither time-critical, nor important for the organization.
Generally speaking: Should you always change your behaviour according to the feedback you get from your boss even if you feel strongly about that it may negatively affects your overall performance or should you think twice about whether the feedback you got is really effective?