docs(linux): Warning against beta vulkan-radeon version in Linux Troubleshooting wiki page

[payolin]

Hi,

I am running archlinux. My version of vulkan-radeon was from the mesa-git repo, which is for beta builds of the mesa stack.

I ran into some problems. Lauching the dashboard or any VR game with it resulted in a segfault. Not remembering I had the beta version, I tried using other vulkan implementation, namely amdvlk, which caused the issues described in the "Artifacting, no SteamVR Overlay or graphical glitches streaming view" section.

As I don't know how many people are using said beta version, I feel it might be relevant to add the warning in the wiki.

I have updated the section title and text accordingly.

[The-personified-devil]

There's nothing specifically making mesa-git contain bugs, it just has a higher likelihood because it isn't properly tested unlike a full release. I feel like having both mesa-git and running into a bugged version is such an unlikely combination that explicitly mentioning it on the wiki just causes cludder. But idk, do you have another opinion @Meister1593?

[zmerp]

I'm not Meister but i think that saying that a git driver may have bugs should be expected and mentioning is redundant.