VS 2022 for Mac supported IOS apps that used storyboard instead of Xamarin forms, but this was still a Xamarin app. If you upgrade to your project to net 8, and install all VS updates, you should be able to target IOS 17 & Xcode 15. But you need a migration path.
Maui does not have direct storyboard support like Xamarin, but if you google it can be done. The Maui build tools currently support this (the examples are for a launch screen).
There is work to support calling swift from Maui, and this may allow SwiftUI support in the future (now you have to create an objective-c wrapper around the SwiftUI).
dropping Visual Studio for Mac caused me to abandon Maui. I use visual studio code, but it is no replacement for an IDE for projects with complex build chains (mobile apps). If in the future building native libraries from Maui is supported, I'll revisit Maui. I just switched to Swift/SwiftUI.