I guess if you autostart the linux VM upon booting this should work. I am doing actually the same with BeOS but using a Linux as the hardware compatibility layer. Linux distro is configured to autologin to sway which starts a VM and run it fullscreen. The guest VM is configured to use all the laptop ram leaving only 1GB for the host. In the second virtual desktop the pulseaudio volume control, wifi and bluetooth management tools are automatically open so I can easily plug a BT headphone, switch network.

The linux distro automatically shutdown if I shutdown the VM. I am using swaylock to lock the screen when I am away.