It’s for similar reasons that the software renderer right now won’t work (it’s not compatible yet with x86_64, not in upstream either). It is still less compatible than the 32bit x86 dynarec in PCSX2, so keep that in mind. On Xbox you will only be able to use Direct3D11 anyways. Direct3D 11 renderer can be faster than OpenGL but also has less features. PCSX2, unlike Play!, will not work without a real BIOS.
You need a working BIOS inside /pcsx2/bios. You can put all the asset files there from your regular PCSX2 install. Create the following directory in your system directory – “pcsx2”.It’s available for Windows only right now, but the same core has been tested to work on Xbox One/Series systems as well. Today we’re releasing an alpha version of the PCSX2 libretro core on the buildbot. PCSX2 Alpha core available for Windows now!