If you know that that’s the right driver to install, what is your question?

I usually give detailed responses, but honestly the correct response here is RTFM. The short answer is to install nvidia-580xx-dkms.

Arch wiki is such a great place that has the answer to most technical questions you might want to ask. I strongly dislike the idea that Arch is for advanced users, but it does expect you to read the documentation (which is why I dislike stuff like Manjaro that try to make Arch “accessible”, but end up leaving people in similar situations without even knowing where to look for the solution to their issues).