I would say that the main difference is that many applications written for Windows 95 will work just fine on a Windows 10 system. The Mac ecosystem has nowhere near the same amount of longevity.

And even well written games, like Deus Ex. Not it's successor ironically though.

With some tweaks, Deus Ex Invisible War runs fine here on Windows 10. In general i didn't had any game or program i couldn't get it to run in Windows 10 and i have a lot of older software.

Microsoft may shit out a new toolkit every other year (which is a shame, they should be fixing their existing stuff instead) but at least they maintain them for basically eternity. You can pick up anything and it'll be there for years to come (though not everything may be bundled with the OS forever - IIRC some less used some are downloaded on demand, but still the applications do not break).

(though personally i mainly trust core Win32 as everything else is built on it and because of that it is the most likely to remain stable)

But you can still use any of them. Especially GDI/Win32 which just won't die.

I would say it's worse. At least Apple uses the same frameworks they want you to use.

Of the ones you listed office (word, excel etc.) doesn't use them, they have their own framework.

Why should I use UWP if its not good enough for the office team? I want to use what they are using.

Why is Office your only reference here? Office also runs on Android. It needs to be more portable.

Other references: Visual Studio runs on WPF and many Windows apps are UWP.

I use office because that's their biggest money making client application suite. You would think it gets the most UI usability focus of any of their products, so it must mean something when they don't use any of the UI frameworks they push for everbody else.

Visual Studio is an interesting one, huge effort to get working on WPF, which needed improvements to WPF for them to use it. Surprise dog fooding your UI framework causes improvements pretty quick.

Imagine what WPF would be like if the Office team used it, might be cross platform.

Luckily for GUI apps I've had enough "wisdom" and am only using Win32. Delphi (another shining example of backwards compatibility and being TRUE RAD) has shielded me from writing too much code for functional GUIs. So I mostly work on improving functionality and feature set rather than chasing whatever latest tech/framework is in vogue at the moment. Most of them come and go. Especially in web development.

However, there is effectively a 0% chance that an app written using those technologies will stop working arbitrarily.

All of these are still maintained and get new OS features.