It sucked to discover that a domain I transferred from Godaddy to another registrar was removed from the Premium DNS service I paid and which is still active.
This can only confirm that I took the right decision moving the domains one by one.
Hello @ThisIsCrazy, when you move a domain out of your account, the nameservers that you'd be required to use with the domain will be different. You can still use Premium DNS with the domains, however you'll need to set them up with the off-site Premium DNS nameservers. You can find the nameservers you'll need to use here: https://www.godaddy.com/help/add-off-site-dns-20165.