I've seen a few blogposts on the subject over the years but wouldn't be able to reference any of them on short notice.

In short though, frameworks like SwiftUI tend to be designed around a very narrow set of use cases and if yours deviates from those in any way you're in for a bad time, and depending on how great the deviation is will likely land you with falling back to older imperative frameworks for their more customizable/hackable widgets in places (if that's an option) or dropping the declarative framework altogether.