Back in time, Microsoft invested heavily in program analysis to fix those hideous BSODs due to broken third-party drivers. It was very successful.

Apple's problem is simpler as they own the code, and bugs are likely to come from understaffed engineering.

Apple's self-contained platform, huge sums of money, and massive upgrade adoption rates would make it very easy for them to ship modern software. They for some reason choose not to

iOS and OSX isn't modern software ?

I am curious about the qualities an operating system needs to be deemed "modern".

I personally love iOS and macOS and use them both daily. Though there are facets of both that I think could easily be improved given Apple's position.

Off the top of my head -

A. Slow development cycles on Safari (they're getting better, but still) while simultaneously blocking competitors on iOS

B. A number of embarrassing security failures on macOS recently

C. A lack of focus on macOS (Probably the cause of B)

I can't tell you how many more meters per second you will get if you push harder on the gas... But I can tell you that pushing harder on the gas is likely to get you where you're going quicker.

Do we really need to discuss exact m/s before you're willing to push harder on the frickin gas?

"Measure twice, cut once."