This thread of UI issues with the Ventura System Settings really says it all. Most of this would have been shocking in a different era of Apple.
Having items needlessly nested under modals/popups is a design choice and the complaints have little to do with the fact that the beta is buggy.
I have little faith this will be addressed in the scant time left before a GM release
So what are they doing now? Using tools that evolved to serve touch-first interfaces to build desktop applications.
The Mac/iPad split grows more confounding with every iteration. Now it feels like familiar desktop features are being reimplemented poorly in both iPadOS _and_ macOS.
Apple views the Mac as an iPad with an attached keyboard and optionally cooling.
There will be touch on the Mac very soon and they are preemptively getting the Apps ready. The whole Apple Silicon migration is to facilitate this merge of macOS and iPadOS. As soon as the 3 year migration to Apple Silicon is complete and most developers have stopped relying on Rosetta, Macs will have touch and there will be no longer two OSs.
The new iPad-Mac merge will have Xcode and maybe a Unix like terminal.
At least they don't suffer from the "it's working on Electron and on the web", meaning it will not run any good anywhere. Same result at the end though...
Taps and clicks are completely compatible and the only issues come from multitouch interfaces but even they can work well with substitutions like scroll to zoom instead of pinch to zoom.
Besides, the web has been first-class on both platforms for quite some time now and interfaces that work well on both are pretty much ubiquitous. It comes with added benefit of UI familiarity, be it a Web UI or mobile UI.
Therefore, I think the current issues in some apps are not fundamental but simply bad design choices that can be fixed with better adaptations.
I also don't expect quick and complete re-write of the established apps as re-write with a new UI framework is a common death sentence.
I don't think Apple lost their religion. I think Catalyst/SwiftUI were created as an answer to desktop applications moving to Electron. Moving to web-based applications significantly reduces the value proposition of macOS and to some extend also iPadOS/iOS. Most likely, a SwiftUI app will still be a better macOS app than an Electron app. And if you can use a single framework across Macs/iPhones/iPads, it might entice developers to use SwiftUI for Apple platforms instead.
IMO, Catalyst and SwiftUI (at least so far) are a regression compared to good-old AppKit apps. But the world has changed, and I'd rather have a Mac/iOS world with SwiftUI apps than one with Electron/Ionic/whatever apps. At least the SwiftUI apps will look somewhat consistent and provide stronger platform integration.
How is it an answer? Electron gives the developer the same code for the web and for Microsoft Windows. Catalyst and SwiftUI give the developer none of theses.
This has already happened for a small number of applications -- e.g. the macOS Twitter app is a port of the iOS app using the Catalyst framework.
There's no Electron for iOS (because Apple requires WebKit and prohibits Chromium).