This is not accurate at all. It always works using Ubuntu's GUI and you don't have to reboot or anything. Only issues I had was that you have to reinstall those drivers each time you upgrade to a new version of Ubuntu
I have upgraded from driver 525 to 535 on 3 different systems (work PC/laptop and personal PC).
Every single time the screen would go black and I had to force reboot.
This is absolutely accurate, at least for some people I guess.