Currently no standard workflow for Fixed Assets Transfer Order is available in D365, through which approver can Approve, Reject or can delegate response to some other approver. This should work same as of other workflows (Purchase Order, Sales Order) available in D365.
If this feature will available in future release of D365 then along with our client's many other user's requirement can be fulfilled.
Hoping good news from your side.
M Awais Tahir