How's the graphical performance in qemu? I tried using ZorinOS via Windows' hyper-v - which should run at native cpu speed - but the graphical performance was certainly not "daily driver-able".
With latter, like with any full-system emulation, for top graphics performance, you probably want a separate video card and [pci pass-through] it to the guest VM.
[qemu-user] https://www.qemu.org/docs/master/user/main.html
[qemu-system] https://www.qemu.org/docs/master/system/index.html
[pci pass-through] https://askubuntu.com/questions/1406888/
For simpler needs (ie: mostly 2D, very minimal 3D) it's great. I use this mostly for isolated browsing environments and am very pleased.
I believe this works with both Windows and Linux guests, though drivers are more annoying where you'd expect.