Do you maybe guys know the reasons VirtualBox not supporting some compositors?
for example Sway docs states that it does not work with VirtualBox
wiki.archlinux. org/index.php?title=Sway&oldid=483031#Using_VirtualBox
Wayland compositors in Vbox
Re: Wayland compositors in Vbox
VirtualBox only supports hardware acceleration under X11<1>, so Wayland compositors can generally be used without acceleration but not with it.
<1> https://www.virtualbox.org/wiki/X11Guest3D
<1> https://www.virtualbox.org/wiki/X11Guest3D