To those who is looking for a solution for a working Wi-Fi:My approach is to setup OPNsense onto the VirtualMachine (I did it with raw KVM or with Proxmox) and setup WiFI on the host machine. Then you can create a bridge which combine your host WiFi and the virtual network card for OPNsense VM.It worked for me. The card I use is Wi-Fi 6 AX 210.