Method AddressesWithLabel
AddressesWithLabel(string, AssetTier?)
Every address in the manifest that carries label, optionally restricted to one
tier (null = every tier).
This replaces Addressables.LoadAssetsAsync<T>(label), which has no content-directory
equivalent: a content directory is looked up by key and is never queried by label. The information was
always in the manifest — GetPreloaded<T>(AssetTier, string) already reads it to filter — so the query belongs
beside the preload, and a caller that wants the assets acquires them through the ordinary door after.
Every label query left in the project is an editor-side inspector list (a ValueDropdown that needs
real references), and those read this and then load from the AssetDatabase. That is not a workaround for
the missing label load: it makes an inspector list stop depending on a content build being present.
public static List<string> AddressesWithLabel(string label, AssetTier? tier = null)