I can confirm the problem here
Your system information
Per "Fixed PS4 Glyphs in Big Picture appearing incorrectly in SteamOS/Linux." in the 2017-04-18 Steam Beta client, please opt-in to the beta client and retest this issue.
Closing as fixed.
Same problem for latest update (beta version 1507337206).
If interface language is english problem disapper.
If change interface language to russian the problem appears again

Hello @thankjura, please open a new issue report for your issue.
Nothing extracted yet.
Your system information
Please describe your issue in as much detail as possible:
The button glyphs for the PS4 controller in the footer other than triangle are missing on Linux.
![skaermbillede pa 2016-12-30 03-58-12]()
(I have changed my configuration to use O as the confirm button, but I don't think this should matter)
Steps for reproducing this issue: