GNU/Linux Installing Apple T2 Chip Wireless Drivers Guide
Hi! The linked Tutorial shows you Step-by-Step How to Install Apple T2 Chip Wireless Wifi/Bluetooth Drivers in GNU/Linux Desktops.
First, the needed Broadcom Wireless Drivers are currently bundled in the New 6.2+ Kernels.
In any case this Guide include also detailed instructions about How to Install T2 Kernel on Linux.
But then what is easily missing is just the Non Redistributable Proprietary Firmware.
In case, when incertain see: How to Check if Mac has T2 Chip.
GNU/Linux Apple T2 Chip Wi-fi/Bluetooth Drivers Installation Guide
So first, you may see: Linux T2 Kernel Installation Guide.
And then How to Update Linux Wireless Firware.