Behind the Bastards had a good one on Jobs, where they went into a little bit how he believed in this mucus theory, it was pure madness. And it’s why he died.

Well that's not correct.

Engineers are great at developing a product.

But having someone at the end who's using the product and insisting on consistency because he's anal-retentive and a pain in the ass will mean the product is consistent with the evaluator's goals.

macOS used to have a lot of underlying features that worked consistently no matter which app you were using, and Apple destroyed that.

Either Jobs was having an effect, or it's a damned strange coincidence that the severe reduction in consistency in macOS started just at the point that he died.

Yeah, Apple were doing so great with their engineers until 1997, and then Jobs came back and ruined things.