OKR is another tool for the managers not to feel useless. The problem is when they are also incompetent. OKR is an integral part of company brainwashing of employees. OKRs are good for the management people, but it should be not enforced on those who do the actual work, like engineers. They could set goals like, one coffee per week, report to the higher ups that coffee consumption is good, and thats it. ;)