I just wanted to share that I was able to get Armcrest 4K POE bullet camera working in Netcam Studio.
It is model IP8M-2496EB Here on Amazon
AND was also able to get the camera to work with HOMEKIT via Homebridge for AppleTV. I used the FFmpeg plugin with the following string:
This sting works as is without any other setting changes. If you find tweaks that improve the stream feel free to share.
Hope this helps!