5.0 live usb screen tearing

[Moltke]

So I found an article which could be the solution. https://learnubuntumate.weebly.com/scree...phics.html
Solution:
sudo mkdir -p /etc/X11/xorg.conf.d/
sudo nano /etc/X11/xorg.conf.d/20-radeon.conf
-insert:
Section "Device"
    Identifier "Radeon"
    Driver "radeon"
    Option "TearFree" "on"
    Option "DRI" "3" (add if other lines not enough)
    Option "AccelMethod" "glamor" (add if other lines not enough)
EndSection
-reboot system for the new configuration to take effect

But what do I do about it? The screen is worse than the article pic and I can barely see anything. Even if I somehow manage to follow the instructions it's still a bootable usb. Won't the changes revert after a restart?

Have you installed LL on your pc yet? Are you still running the Live version? whether you have or not: Don't do this!! I just checked your inxi output above and

Code:

driver: amdgpu,ati

this is the driver your pc's GPU is currently using, not radeon. There should be an amdgpu.conf file either at /etc/X11/xorg.conf.d or /usr/share/X11/xorg.conf.d/