That was really not my point, my point is that once you’re a wizard in azure operations those skills won’t transfer to AWS. Similarly to how a windows admin can’t automatically use his/her skills as a Linux sysadmin and vice versa.

Maybe the switch isn’t too bad for small customers, but in enterprise where people spend years specialising and obtaining and renewing certificates you can’t just transfer your staff members between the cloud services without a major retraining investment, in which you’ll likely loose your best staff because there is a reason they chose to spend all those years on your previous service.