As this is a fact and I’m too nosy, I yesterday installed the newest Tumbleweed onto my nvme disk (EFI boot).
First boot (with install DVD loaded): 1 kernel panic, then booting and running succesfully for the rest of the day.
Tried a cold boot today morning. After 3 times kernel panic I changed to my second system (42.2, same kernel linux-ep76 4.11.0-2.g39615a9-default, 4TB disk).
It booted like before - slowly, but without major problems (only whenever I took a short look at boot state using <esc>, there are some new “unexpected IRQ trap at vector 07” messages).