Could anyone from Apple weigh in on this? this is a real and easily reproducible issue. on active scenePhase, if CloudKit, specially SwiftData, is enabled… there is a noticeable hang first few seconds. I am assuming it has to do with the @Query sync with remote.

It's best to use @Query to fetch data when working with UI, like in this case. ModelActor is is meant to work on background operations. But SwiftData is also fundamentally broken when merging changes between background and foreground contexts. I would avoid at all costs.