Better known as 'Desktop Virtualization'. Established competitors in this space are Citrix/XenDesktop, Microsoft/HyperV, Oracle/VirtualBox, VMware/HorizonView used in combination with remote desktop clients like X11 and Remote Desktop Connect. Is there an angle here that is new and interesting?
This is specifically "desktop as a service" so while there may be Xen or Horizon in the mix it is abstracted away from the customer. The established competitors are Amazon Workspaces and Azure Virtual Desktop.