What motivated you to switch branches? Did it solve another issue? Why were you not on the latest branch yesterday, ie, why did you roll back originally? Does one driver work better for some games, and another driver works better for others?
Nvidia drivers are jank. I honestly haven't touched them since 2017. I remember having to reboot and switch drivers to switch games I was playing with friends and finding the whole experience annoying as hell. I realized that Linus Torvalds was right, fuck nvidia, AMD is the way to go. Have not had to touch anything with my drivers since switching. All of my interactions with nvidia since have confirmed that they are not a company deserving of my patronage.
I searched "gtx 1660 vs amd" and saw that your card is usually compared to the rx 590 from amd on speed tests, with similar results. Price is also similar.
One example that includes the prices I was comparing. I have used neither card. I'm not familiar with that website. Do your own research before making a purchase,