The current nvidia drivers are marked out of date, so there should be a new update in the coming days. I use nvidia-dkms though, so those are updated just a little bit slower.
The driver in both cases is the same. What you’re looking at is the pkgrel number.
The DKMS package provides a module that is compiled on your system when the kernel changes. The pkgrel will increment when there is a change to the packaging files (specifically nvidia-utils). The nvidia package provides a pre-compiled module, and so it increments every time there is a kernel update (or a change to nvidia-dkms).
Looks like that is a different driver package, nvidia-vgpu. You should probably stick to the repo packages unless you know that you need this alternative driver package.
It’s going to take time (the devs have said it’ll be a few years) before it’s got feature parity with the current proprietary nvidia drivers, so as for myself I won’t be using the nvidia-open drivers anytime soon. I’m a simple user, I just want a stable system that just works. But for users that want to help out and test it and provide bug reports/feedback, by all means give it a go, just know it’s still in the very early stages.