Switch between iGPU and dGPU

I think to buy a new PC with a dedicated GPU.
But as I generally (in my day to day work) did not need a dGPU, I think about energy saving by using an iGPU for daily work, and only use dGPU for gaming, or Video-Editing if needed.

On Reddit I’ve seen that on Windows is kind of auto-switch possible.
Means, you do following:

  1. setup auto-GPU-Switch in Bios
  2. connecting only the iGPU with the monitor
  3. OS doing the rest internally

REDDIT: Disable GPU and use iGPU to save power when not gaming

Is it possible to use it that way ( or some kind of similar way) in manjaro?

Or may there be a way to set the power-consumption of the dGPU via Linux? That also could be a way to minimize power-consumption if not needed (e.g. for office work).

We generally use PRIME.
(which is supported by mhwd)

glxinfo |  grep 'renderer string'
prime-run glxinfo | grep 'renderer string'

The first would run with the iGPU, the second with the dGPU.

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