There is a difference between design trade offs and flawed design of deviations from the design. Your car does what it’s supposed to do, within the predictable limits imposed by the fact that it’s a gas-powered car. Since MacOS 10.15.4 or .5, my 16” MacBook Pro crashes waking up from sleep due to some glitch in waking up the GPU.

Of course, people perceive that software sucks because it’s more complicated than people perceive. I forget what book said it, but an operating system has more separate components than an aircraft carrier and they’re more tightly coupled. (I’m not sure that’s true, but it conveys the idea.)