without any additional details, I would suggest you persue getting a USB working at this time. test your preferred persistence method and puppy/dogs.
when it comes time, start a new topic about setting up a disk.
some things to address when bringing the nvme back into service...........
the error reported in viewtopic.php?p=119409#p119409
calls for a plan that should remove all existing partition tables and remnants, before recreating your preferred partition table.
developing at least a 2 partition layout adequate for frugal installs,
you can always create additional partitions as you need them from unallocated space, rather than filling the disk now and reformatting or moving later
installing and testing a single bootloader with an eye towards maintaining your choice going foreward.