If you aren't familiar with Clear Linux for OpenGL/gaming performance, see some of our past tests like in Clear Linux With Mesa 13 Is A Strong Match For Intel Linux Performance or Clear Linux Continues To Have Graphics Performance Advantage Over Ubuntu. Clear Linux on Intel graphics systems can even outperform Ubuntu and other more popular desktop distribution alternatives. Though this is just for Linux gaming with Intel graphics -- AMD/NVIDIA graphics aren't currently supported by this Intel Open-Source Technology Center project.
With the latest Clear Linux builds, Steam can now install on the platform and games are running. It's not a trivial, one-step process at this point but the setup steps aren't bad.
Assuming you have an updated Clear Linux install on an Intel box and have already done a swupd bundle-add games (or if doing swupd bundle-add os-testsuite-phoronix to get the whole stack ready off a clean install), the steps for setting up Steam basically come down to:
curl -O https://steamcdn-a.akamaihd.net/client/installer/steam.deb
ar xf steam.deb
tar --keep-directory-symlink -axf tmp/data.tar.gz
So do Steam games on Clear Linux run faster than Ubuntu, similar to what we've seen out of past standalone Linux games? Those results are coming up soon; I'm still running into a library issue (Update: if anyone tries and hits a libc issue, there is also a bit more to fix that) and then the lengthy benchmark process is still ahead but figured I'd pass along these rough instructions for anyone else wanting to toy with Clear for Linux gaming. Clear Linux is currently using the Linux 4.9 kernel, xorg-server 1.19.1, and Mesa 17.0-devel. Those interested can grab the latest rolling-release build from ClearLinux.org.