If there are some missing modules, you need to compile it.
On Axon (or generaly any arm64 platform) do:

apt install build-essential git git clone https://git.unipi.technology/UniPi/axon-linux.git make unipi-axon_defconfig

Now you can change kernel configuration to desired state

make menuconfig

Compile new modules

make modules

You can compile on amd64 platform using CROSS_COMPILE

make unipi-axon_defconfig CROSS_COMPILE=aarch64-linux-gnu- ARCH=arm64 make menuconfig CROSS_COMPILE=aarch64-linux-gnu- ARCH=arm64 make modules CROSS_COMPILE=aarch64-linux-gnu- ARCH=arm64