AMD 390x connected to monitor via display port.

Haven't booted into my ubuntu partition for a while. The only thing I had installed was Steam, Steam for linux, wine, and this Padoka PPA

Booted it up, decided to run:

sudo apt update sudo apt upgrade

Afterwards it said it needed to reboot...

Before rebooting, I also installed from the package manager:

various desktop wallpapers from previous ubuntu releases via terminal

Dropbox

KeepassXC

KeepassXC snap (by accident, then removed it)

Qbitorrent

I also installed Brave Browser via (per their site):

curl https://brave-browser-apt-release.s3.brave.com/brave-core.asc | sudo apt-key add - echo "deb [arch=amd64] https://brave-browser-apt-release.s3.brave.com/ `lsb_release -sc` main" | sudo tee -a /etc/apt/sources.list.d/brave-browser-release-`lsb_release -sc`.list sudo apt update sudo apt install brave-browser

Then when I went to open Brave browser, everything locked up and the screen made a bunch of graphical glitches. I hard rebooted and it just kept showing the Ubuntu loading screen ("Ubuntu" with the 5 or so dots beneath it). It would show this screen, then go black and do this about 5 times. Ultimately ending in a bunch of static on the screen (graphical glitch) and I'd have to hard reboot it.

Tried rebooting it 3 times, same thing each time. I booted into windows 7 from grub just fine so it's not hardware.

Any ideas?