yes Loki games went south but that was when linux on the desktop still wasn't that user friendly.
Yes it was usable, I had no problem just like OTHERS, but there were alot of pitholes and ATI cards were a nono.
These days the difference between a distro release is more settings than them patching their own libs for their own fixes (thank god for git from +Linus Torvalds
). Likewise like it or not Ubuntu has done wonders for linux on the desktop for the common user.
With valve taking a MASSIVE and real interest in linux (whether their motivations are self-preservation from the windows appstore doesn't change the fact it is happening), gaming on linux is in a different state then when Loki was around