个人博客地址：Ubuntu 20.04 Realtek 8852无线网卡驱动 | 一张假钞的真实世界
sudo apt-get update
sudo apt-get install make gcc linux-headers-$(uname -r) build-essential git
git clone https://github.com/lwfinger/rtw89.git -b v5
cd rtw89 && make && sudo make install
sudo modprobe rtw89pci执行完成后重启。
参考链接：https://askubuntu.com/questions/1352731/ubuntu-20-04-no-wifi-adapter-found-lenovo-ideapad-realtek