I am very new to Ubuntu and I have encountered a problem where I cannot connect to the internet through both wifi and ethernet.
I am using a B550m-plus gaming wifi motherboard and I have Ubuntu 20.04 installed onto my E drive. I wanted Ubuntu to be a stand-alone drive instead of mixing it with Windows on my other drives. Upon log-in, the only thing I see in networks settings are options to connect to a VPN. I have no option to connect to either ethernet or wifi, which are available since I can connect to both when I am on Windows. The network icon that is supposed to be available at the top right corner is missing too.
I've looked through various sources and they pointed me towards having missing chipset drivers. So I followed the instructions to Realtek and downloaded the "2.5G Ethernet LINUX driver r8125" driver. Unfortunately, what followed was a flurry of missing drivers that I could not install because I have no internet connection. Any tips on how to solve this?
Edit: here are some pictures which show what I am seeing.
https://www.dropbox.com/sh/bi7u4mwlcxq2fio/AADhAZz-w1jLK4t1u1yRP3Q_a?dl=0