How to KDE Plasma dual video card?

Hi all,
anyone have experience of 2 AMD video card managed by KDE Plasma?

I should like to manage a 4k monitor on a video card (for all normal activities) and a FullHD TV set on the other video card (for playing videos with VLC).

Is this possible?

Interesting question. With an additional Nvidia card it should be possible to select the card even per application.
I have recently used (not now any more) the nvidia manager to get this done.

Not sure if something similar is available for AMD GPU

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