I'm sure the survey results were really valuable and contained only true answers after they announced that "ubuntu" is the "right" answer for the first beta... I hope they don't take them too seriously.
I would try but I'm at work currently.
$ steam steam://open/store/ &
To clog crash/stats/... reports with unsupported system.
Also apart from some python2/3 issues in their scripts, Arch install seems to be pretty stable - bought 2 games and they work just great.
Because you can install Desura on any linux distro and it tends to work. Tried several.