VirtualBox / Roon / OpenGL issue and what about Containers

How do you access the VM’s desktop? You probably use Microsoft’s Remote Desktop for that? Maybe this threads solution works?

Note: Your setup is complex. You need to make sure that there is a (virtual or physical) GPU available inside the VM that supports OpenGL 3.0. You need a driver for said GPU that also supports OpenGL 3.0. You need a way to remotely access the desktop of the VM that supports higher level graphics functions like OpenGL 3.0 too. Standard Remote Desktop of Windows uses a virtual GPU and driver without support for such. Maybe you can find a working recipe online using search terms like “remote windows gaming VM”?

PS: Linux users (including myself) nowadays use Proton/Wine to run Windows games (and Roon) on Linux.