Another question about Leap 16.0: no prime-select?
How to switch between the gpu?
prime-select has been deprecated for some time, now the way is Switcheroo_Control
And does Switcheroo work on XfcE and MATE?
It is DE independent.
Then why do they write this:
You have a laptop with an NVIDIA discrete graphics card and Intel or AMD integrated GPU (iGPU), otherwise known as NVIDIA Optimus technology. You may need to run programs using the discrete graphics card, but you don’t want the discrete graphics active all the time, because that would cause the laptop to consume too much energy. You also are using either Gnome or the KDE desktop environment with Wayland, which both offer GUI integration for hybrid graphics (for X11 support, see SDB:NVIDIA SUSE Prime). However, this integration is not enabled by default on openSUSE Tumbleweed.
The wiki is maintained by users which spend their freetime for it. It happens that time changes and situations alter. Sometimes some situations are also described unfortunate.
I rephrased it.