[10:24] <SvenKieske> hi there, me again, I updated https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1998224 ; it turned out, that pci hotplug is in fact enabled; I just didn't look at the right configs. Still no luck with nvme hotplugging, but instead a ghost of an old nvme subsystem under /sys/  :(
[10:24] -ubottu:#ubuntu-kernel- Launchpad bug 1998224 in linux (Ubuntu) "pcie hotplug not working in linux-generic-hwe-18.04 5.4.0.107.121~18" [Undecided, Confirmed]