System Preferences also sometimes just render a WebView - most notably in the Apple Account settings

Oh that hackjob explains some of the inconsistent, frustrating performance

(I do give them credit for some terrible usability elements that would delay a scammer if they had our elderly relative on the phone.)

The AppleScript that has to be written and rewritten to flip a simple switch in settings… (it’s telling the system to move around and click in the UI by count, and the count gets thrown off by what I now suspect to be unpredictable web view UI loading)

I assume because there’s no good “render a view hierarchy based on layout delivered from a server” option. Whereas this is what HTML is with caveats.