How to Update Apple Silicon Wireless Firmware on Gnu/Linux Distros
GNU/Linux Updating Apple Silicon Wireless Firmware Guide
The linked tutorial shows you step-by-step How to Install Apple Silicon Wireless Wifi/Bluetooth Firmware in GNU/Linux desktops – Step by step Tutorials.
And Mac T2 Wireless Firmware for Linux includes the Proprietary Blobs to get Network Connections Working.
Most noteworthy: this Setup is working if you dispose of a Dual-Boot Mac/Linux System.
Especially relevant: as Pre-requisite you may need to follow instructions to Install T2 Kernel on Linux.
