Today I for the first time installed ubuntu 20.04 LTS on my laptop. During the installation process I was asked to connect laptop to a wifi, so I did that. This connection works just fine. I can browse pages and install software updates without any problems.
But later when I opened the Additional Driver app, I found out that my laptop's wireless network adapter "is not working" because it did not have a driver at that point, and I have to manually install a third-party driver. So I'm just so confused, how did the previous connection work?
lspci -knn | grep Net -A3 gives the following:
02:00.0 Network controller : Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter [10ec:c821] Subsystem: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter [10ec:c828] Kernel driver in use: rtl8821ce Kernel modules: rtw88_8821ce, rtl8821ce