Auto-deleted questions are shown. These are all from the “Recently Deleted” list:
We can see posts deleted from spam flags are shown and roomba deleted
RemoveMigrationStubs posts are shown.
Posts aren't shown if the user account that owns that post is deleted (so spam posts are only shown until the account is deleted for example).
Self-deleted posts aren't shown either, ♦ moderators do have a separate list of self-deleted posts available to them though.
Note, there are a few other roomba states I couldn’t find (I assume because there hasn’t been any recently; the last rejected migration was too far back to appear in the list for example) but I wouldn’t expect they’re any different. I will update this when possible.