To move an #Azure Arc resource from one subscription/resource group to another, it takes a TON of clicks in the portal, as well as an unexplained 3-5 minute wait time (WHY?). Do it in Azure Cloud Shell, you can cut down on SOME of the clicking around (some functions of the Azure Portal have no 1:1 CLI equivalent though, such as re-assigning Maintenance Configurations in Azure Update Manager), but the wait time is still there, and the overall shoddiness of this entire platform is exposed when you do this in practice.