i just bought a Gigabyte GC-WBAX200 WiFI-Card because i can't use my OMV NAS with a wired connection anymore. After the installation i recognized that the wifi card does not show up in the interface tab of the webgui. I did some research and found out, that my kernel version is too low for it to work (according to Intel kernel version 5.1+ is needed for AX200 modules), so i tried to find out how to upgrade the kernel version. I read some instructions about backports and proxmox and tried both but i can't work it out. You can see my OMV version in the attachment.
Can you give me some advice how i could proceed? For you information, i am quite inexperienced with linux, but i'm trying my best to get used to it.