Windows 365 Cloud PC queries

Hi All,

Looking for more details regarding Windows 365 Cloud PC, like below:

- Can we apply Custom policy

- How to manage and admin windows cloud pc

- Can we install custom applications in windows 365 cloud PC 

- Do we need separate subscription to assign cloud pc to M365 users (we have Microsoft 365 business subscription).

- Any other details/documents that helps to quick start.

Thanks in advance

Rajesh