Question Is it possible to asynchronously unload one scene while loading another (plus some extra assets)?

My game only has one built-in scene, and it's empty. This built-in scene is where global game managers (UI event systems, platform services, etc.) reside after being instantiated at launch. After that, all scenes and assets are loaded with Addressables.

When I do transition between scenes, I want it to be as seamless as possible. I figure that's possible by doing a lot of work in the background. So I'd like to be able to do the following, in order:

1. Decide that it's time to move to another scene.
   
2. Additively load a new scene, but don't activate it yet. At the same time, load assets that don't exist in-scene but are still needed for it (e.g. prefabs that will be spawned at runtime).
   
3. When the new scene is ready to activate, unload the currently-active scene (unless it's the aforementioned bootstrap scene).
   
4. When the currently-active scene is unloaded, activate the newly-loaded scene.

However, the docs for AsyncOperation.allowSceneActivation suggest that taking the above steps would cause a deadlock (but correct me if I'm wrong).

Given this information about my use case, how can I load a scene (and some extra assets) in the background, unload the current scene, then activate the new one when it's ready?