Thank you for posting in Microsoft Q&A forum.
Yes, it's possible to get a fully functional SCCM server in cloud. CMG might suffice for servicing internet clients. The cloud management gateway (CMG) is an additional cloud feature that allows you to manage internet-based clients using your established workflows and processes. CMG helps minimize the management traffic from Configuration Manager to clients through your VPN. When you enable CMG, you maintain a connection to your devices wherever they are on the internet. This connection enables you to keep up with your usual software deployments, device configuration, and software updates processes for internet clients
For more information, please refer to:
Thanks for your time. Have a nice day!
If the response is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.