This hasn’t been consistent since at least Vista and the release of WPF, which does totally custom control rendering. Circa 2006.
I think web is taking over on Windows because any of 10 or 15 different design systems can get you to a better app than the native (whatever that means) toolkits in much less time. It is easier to get a decent color picker in a web app than a WPF, WinForms, UWP, WinUI, or Win32 app (assuming you have a reasonably high expectation for UI/UX, as I do).
Even Office and Visual Studio (not Code) are using web technologies to render substantial parts of the UI.