This isn’t a guide, just something i think may help. To install Steam on an Arch-based distro in most of the cases a simple sudo pacman -S steam will do just fine.
The installation will ask you to select a valid vulkan package from a list. And in most of the cases that’s just fine… most of them.
Then you have your very “picky” old nvidia GPU which works only with a specific old nvidia driver and if you try to install anything else, there will be a conflict. Now you can try to remove the old (working) drivers and try your luck. But looking online i find a simple way to skip this passage and install Steam.
sudo pacman -S steam --assume-installed lib32-vulkan-driver
This is funny because I recently retired my 750ti which I had been using for server work and it ran great with the latest Nvidia driver (although I heard they’re gonna drop support soon and move the driver into a legacy package on rpmfusion).
The poor thing couldn’t even do H.265, had 2 Gb of VRAM, and needed specially compiled libraries for pytorch/tensorflow stuff because CM 5.0 was over 10 years ago, but it chugged along just fine.
I’m personally still on a 1660ti because despite OpenCL’s best efforts, CUDA has everyone by the balls, but now that I have a beefier server setup, I’ll probably go with AMD on my next build.
Assuming I’ll actually want to make a new build with these insane prices lol.