Hey @davdroman,
I just migrated from a very old version of SwiftUIIntrospect and obviously ran into this version API. My use case is accessing the UIScrollView in SwiftUI Lists.
As I understand, if one uses explicit versions, the closure won't be run for unlisted versions, or for listed versions too when the wanted view type doesn't exist.
And when using range syntax, the closure also won't be called if the wanted view type doesn't exist in the hierarchy.

Now if I got it all right, this means that the API under @_spi(Advanced) doesn't have any downside compared to the explicit one, and I'm wondering why it wouldn't be the one that people should use by default? and thus not hidden behind @_spi(Advanced)

Did I miss anything?