Sorry, late to the thread.
The Beelink BT3 Pro was the machine that I used to test out the LinuxCNC installer ISO when I created it, so the standard installer will definitely work.
But, to get WiFi working I found that I had to uninstall wicd and install nm-tray instead. That got the Wifi working for me, though it is possible that I also installed a brcm file whilst trying to sort it out too. If so I will try to find it.
I keep meaning to make a new ISO, with nm-tray present by default.