insmod: ERROR could not insert module: Operation not permitted in WSL2 Ubuntu

Question

I followed the instructions in this video to compile the Linux kernel for WSL with video drivers. The kernel is running and I do have access to /dev/video0 which was the whole point.

I can also confirm that the correct kernel is running with uname -a, which gives the following output:

Linux DESKTOP-V575QHO 5.15.74.2-microsoft-standard-WSL2+ #1 SMP Wed Dec 7 14:57:03 CET 2022 x86_64 x86_64 x86_64 GNU/Linux

I now installed dkms and used it to compile the akvcam module (a virtual camera driver). Both make and make dkms_install exited successfully.

However, when I'm actually trying to install the module using insmod /lib/modules/$(uname -r)/updates/dkms/akvcam.ko I get the following error:

insmod: ERROR: could not insert module /lib/modules/5.15.74.2-microsoft-standard-WSL2+/updates/dkms/akvcam.ko: Operation not permitted

I've seen here that this might be related to Secure Boot, but I don't really understand how this would translate to WSL2 and how this problem could be solved here.

Any help is greatly appreciated!