Installing
3. Installing Realtek Firmware
How to Install Realtek Firmware in Debian
Then Reboot with:
sudo reboot
And if the Adapter is working then you are Done!
In fact this Module should already present into the Kernel.4. Installing Realtek Wifi Driver
So Now I’m truly Happy if My Guide could Help you to Install Realtek WiFi Driver on Debian Bullseye 11!