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


Cachy kept freezing on me as did many other distros I was using. I found the common reason was due to Wayland and I’ve been on Linux Mint Cinnamon ever since with no issues like that. RTX 4080 Super
How recent was this? Cinammon only just got experimental Wayland support, AFAIK. Like, a month or two ago?
And Cachy KDE Nvidia Wayland was jank for a while (hence it defaulted to X11), but it works fine for me, for now.
I made this change like back in December or so. I had been distro hopping since moving to Linux in August of last year and was on a ton of distros with KDE that all had Wayland.
I moved to Mint Cinnamon because it seemed to be one of the few that wasn’t using Wayland and my issues stopped. I believe they did have experimental Wayland on one of the versions and I made sure not to use that one since I was under the impression it was due to Wayland and remember trying to decide between the other options they had.