I am running Ubuntu 20.04, and when i look in the settings in the top right there is no WIFI option, I use a dual boot with Windows 10 where the WIFI works 100%
Edit: i started nm-applet and the settings now show, but i still don't know how to connect.
Edit 2: lspci shows this:
<snip>
07:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter
08:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)