atriaze Following the link, the driver of the card must already be installed.
That's what I think, too, since the installation ISO uses kernel 5.13.
atriaze For my worries, I can't even install Solus.
Let me make sure I have this right: Solus Plasma doesn't install, but Solus Budgie installs properly? If that is so, then the installation kernel (5.13) must have a working driver for your GPU. Tnat's what puzzles me. Both the Budgie ISO and the Plasma ISO should be using the same driver for you GPU. So why does one install but not the other?
On last possible reality check: The 12th Gen Intel® Core™ i7-12700K has an onboard Intel® UHD Graphics 770 GPU. I wonder whether Solus Plasma would install if you disabled/removed the Nvidia GPU from your computer, so that the computer booted from the Intel 770.
That won't tell us much, but there is a chance that if you can get Solus Plasma installed using the 770 and the 5.13 kernel, and then update Plasma to current and put the Nividia GPU back into your computer, the 5.15 kernel might run using the Nvidia GPU.
The reason I'm wondering is that your specs (see above) suggest that EndeavorOS is running the 5.15 kernel.
That's a lot of work for probably not much result. Your best bet is to hold on until someone with more experience with Nvidia shows up with useful suggestions.
