Just got my new Intel BE200 working on my Orange Pi 5 Plus. You can try the following steps:
0. If your kernel version is >= 6.5, skip to step 3
1. Follow this official tutorial to build Armbian with the latest kernel: https://docs.armbian.com/Developer-Guide_Build-Preparation/
2. After successfully compiling, you'll find the image file under output/images. Burn this image to your TF card.
3. Boot into the new system and run
dmesg | grep iwl
If you see a message like "Direct firmware load for iwlwifi-gl-c0-fm-c0-96.ucode failed..." then you're on the right track.
4. Clone the latest Linux firmware repository
git clone git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git
5. Copy iwlwifi-gl-c0-fm-c0.pnvm and iwlwifi-gl-c0-fm-c0-96.ucode (depends on the highest ver # from the message you got at step 3) from the cloned repo to /lib/firmware.
6. chmod 644 on those files.
7. Regenerate the initramfs to include the firmware
sudo update-initramfs -u
8. Reboot