You would think that, but ultimately, HR has the last say. Managers like numbers, and HR just wants any excuse to can you.

I once got severely penalized and basically fired for this. Pure engineering role. I figured a good supervisor didn't need me to tell them for them how well and what I did for the past year so I was pretty laissez-faire in my own written review. Well I was basically almost instantly fired. For the next three months they kept trying to stage "gotchas" and each time they just found out that I was a beyond excellent engineer and the trust was completely blown out on their side not mine.

The relationship was pretty destroyed but I'm a pretty 'all's well that is well' guy and I'm also a professional. However they could never forgive themselves for the damage they did. So they spent the next 2 years doing "constructive" dismal. By the time they were done I found out there is actually something beyond your soul that you can hate something with. Then they let me go with a company wide sweep of like 10% of the department at once with severance because obviously despite like 6 major staged attempts in the final 3 months, they couldn't pin fault on me at all.

Plus, I am an automation engineer. If I'm working, something is either new or wrong.