Going to the source of it all (Stefan is the packager of the Nvidia drivers for openSUSE):
sndirsch.github.io/nvidia
go down to the section titled
Migration from G06 to G07 Open drivers
Nevertheless there is at least one case that required installing more packages:
migrating-from-nvidia-g06-580-g07-595-on-tumbleweed
Maybe the package dependencies have been updated meanwhile, but adding explicitly the needed packages doesn’t hurt.
As a safety belt check that all G06 packages are gone and that the G07 ones are in sync before rebooting.