Hi Abucodonosor,
You did it!
Here is what you requested :
1 - lspci :
lspci-OMLx4.txt (2,5 Ko)
2 - nvme list
nvme-list-OMLx4.txt (163 Octets)
From french => No command available
3 - nvme id_ctrl /dev/nvme0
nvme-id-ctrl-OMLx4.txt (183 Octets)
From french => No command available
4 - Then I booted with : nvme_core_default_…us=0
and here is the dmesg (will be send later, lost it at the moment)
5 - Then here is KDE partition program with the SSD => OK with option just above inserted in grub2
6 - And finally Calamares Where the SSD appears now
Congrat.