We are VMware and Microsoft partners, so we offer services around their products.
We are using Intune internally but we are leveraging it for our customers as well. That is a different story. One part of Intune is within our company, but we are also providing services around Intune and Workspace One for our customers.
For us, Intune is on the public cloud. For our clients, it depends on the requirements and it varies from customer to customer. Some clients' requirements are deployed in private cloud mode or the hybrid setup. It depends. Requirements differ from industry to industry. If a company is BFSI (Banking, Financial Services, and Insurance), then they will be looking for a private cloud solution. If it is something which is not BFSI or maybe some industrial interest, they might go with the public cloud.
In the end, most of our instances are in the public cloud unless there is some compliance requirement. Otherwise, the accounts are mostly in the public cloud to conform to regulations.
Intune is used essentially to facilitate the ability of enterprise organizations to manage their endpoints. It is for end-user computing or UEM (Unified Endpoint Management) solutions.