Installer does not boot - nvme timeout completion polled

I’ve encountered the same issue.
From my research, this seems to be an issue with earlier versions of Fedora up to f35 (USB installer uses f32).
I will test with a different NVMe drive soon to see if it persists.
You could try booting from a detatched LUKs header, which managed to get me a little further.
See guide here: Playing with qubes part 2 (Note: follow video instructions vs text, as there are some inconsistencies if you choose BTRFS)

You could also try disabling IOMMU, this should get past these errors into the installer, and re-enabling once installation is complete.