As an update, with kernel kernel-5.3.11-300.fc31.x86_64 and xorg-x11-drv-nouveau-1.0.15-8.fc31.x86_64 just adding nouveau.runpm=0 nouveau.noaccel=1 seems to be enough to make the system at least boot and be able to show the outputs connected to the Nvidia card. I did not test that it actually works though - intend to try once I'm near an external monitor. If there is interest in figuring out why is noaccel required, let me know pls.