Resource Changes: Track resource move
Create a change log when a resource is moved to a different resource group and maintain its history from before it moved
Wesley Haakman commented
Not that this should be on the top of the list but from a governance perspective it is something we'd like to track. if the original resource ID is not longer available (because of a move or deletion) it would be helpful to see some kind of change that confirms that this happened. Especially when you're building automation around this functionality.