Both ethernet and wifi not working after upgrade from ubuntu 18 to 20

[Perzan]

I have a problem where I cannot use wifi or ethernet. I was going to try this answer: https://unix.stackexchange.com/questions/416180/ubuntu-no-wifi-adapter-found/423250#423250

But I can't get usb tethering to work, so I made a post here: https://unix.stackexchange.com/questions/621883/cannot-use-usb-tethering-to-solve-problem

I recently installed Ubuntu 20.04 and this started happening.
Not exactly sure which package is responsible here.
I am making this bug report on the same pc except I am using an ubuntu installation thumbdrive. The live usb seems to recognize ethernet right away, but the one installed on my ssd doesn't.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubuntu-release-upgrader-core 1:20.04.29
ProcVersionSignature: Ubuntu 5.4.0-1029.31-gcp 5.4.65
Uname: Linux 5.4.0-1029-gcp x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.13
Architecture: amd64
CasperMD5CheckResult: skip
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Fri Nov 27 21:09:59 2020
InstallationDate: Installed on 2020-10-12 (47 days ago)
InstallationMedia: Ubuntu 18.04.5 LTS "Bionic Beaver" - Release amd64 (20200806.1)
PackageArchitecture: all
ProcEnviron:
 SHELL=/bin/bash
 LANG=en_US.UTF-8
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
 PATH=(custom, user)
SourcePackage: ubuntu-release-upgrader
Symptom: dist-upgrade
UpgradeStatus: Upgraded to focal on 2020-11-27 (0 days ago)
VarLogDistupgradeTermlog: