Docs: Looks like one/some game/s does/do not like multi-gpu

I'm unable to edit the wiki, posting here for visibility/searchability.

Since I had a nvidia GPU I tried to use the [multi-gpu management utility](https://github.com/ChimeraOS/chimeraos/wiki/General-Configuration#multi-gpu-management-utility-egpu-and-igpu--dedicated-gpu-configurations) but it ended up in worse resolution and non-hdr support (probably also due to my older cpu). I ended up switching back to the external nvidia gpu.

But I still had in the BIOS the "iGPU multi-montior support" enabled. This led to an issue with Steam Hogwarts Legacy to constant unplayable frame-rates. There were no Nvidia DLSS options available even though the ingame settings in the bottom was my Nvidia card listing.

After disabling said multi-monitor setting in the BIOS the game correctly detected my card again, DLSS was available to be configured and frame rates were great again.

I have not encountered any other game with this issue so far but also didn't try many. Open to you if you want to add a note to the wiki in some way.