The biggest disappointment in my 30 years of adulting has been how much absolute, shameless incompetence is out there in the workforce. When I was a kid, I naively thought that adults were smart and knew what they are doing. Then I got into industry and saw so many people just outright bluffing for 8 hours a day before going home, day in and day out.
It's amazing that society even functions at all.
I think that's actually an interesting feature of society as a macro system. It is very fault tolerant, which is frustrating for any power user but without which the system as a whole would not function at all.
Or without which the system would function much better because all poorly functioning systems would fail, forcing designers to focus on fixing the faults
I think of it as a plane that cannot land. Allow it to fail in flight and you won't have a plane to fix or designers to fix it.
At least when you realize it, you are cured from any imposter syndrome you might have.