[wilsonnb3]

For reference, Steam still reports Windows at like 96% and Linux at like 1.5%.

So that 20% is of the 1.5%, so about .3% of all steam users are on SteamOS Linux.

[esturk]

If you click on the line item "OS Version" (for all 3 platforms), you'll see the "Steam OS Holo" is missing. I suspect the aggregated stat might not be updated properly. For one thing, the top Linux OS is still "Arch Linux 64 bit" at 0.13% when it should be "Steam OS Holo" as you mentioned at 0.254%.