Revisiting this because DF FINALLY released their comparison. Seems the developer got the Series X version at a locked 60fps @ a HIGHER resolution than the PS5 version.
Looks like the devs lowered the resolution from the demo to get better performance which is the correct choice.
Weird how DF didn't mention the better AF/texture filtering advantage the PS5 has as shown in these pics which makes the IQ of the PS5 look better than the XS.
Outriders - Demo
Xbox Series X -1944p
PS5 - 1800p
Outriders - release
XSX - 1800p
PS5 - 1728p