[veidr]

Yes, I totally agree with that.

The way they have implemented it for even their own "cross-platform" needs (where the "platforms" are really basically different versions of the same OS) works very well — the sickening, jaw-droppingly awful apps from Twitter, JIRA, etc that use the "Catalyst" system of porting iPad apps to Mac shows why the approach is really necessary.

(Those apps bring iPad metaphors to the Mac, so what should be a single interaction, picking something from a menu, is a jarring series of taps, swipes, and animated fuckery.)

If that "render the concept using the OS's native widgets" approach was necessary even for cross iOS-macOS apps, it will be even more necessary across Mac and Windows, where a lot of the UI conventions are wildly different, and sometimes literally the opposite (e.g. the standard placement of buttons).

And it's obviously the only way it could work for web apps.