I looked at Ubuntu 18.04 and they are using some kind of Nvidia-PRIME configuration when the proprietary driver is installed.
There was an openSUSE equivalent called suse-prime http://download.opensuse.org/repositories/home:/bosim:/suse-prime/openSUSE_Tumbleweed/noarch/ but it has received no updates in the last 2 years, the last time I saw it working was on Leap 42.1 and this thread Re: [opensuse-factory] suse-prime nvidia driver - openSUSE Factory - openSUSE Mailing Lists does not leave much hope…
Sorry, but I don’t know of any easy equivalent on Tumbleweed at the moment.