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A post published on the Steam Community website says Capcom will bring SteamOS support for Street Fighter V this Spring. This means the free update for SFV will include Steam Controller support and the cinematic story mode, both that will be available in June for owners of the PS4 and Windows PC versions of the title. “Our development team is working closely with Valve engineers to bring the full Street Fighter V experience onto the SteamOS platform,” says the post about SFV for the Linux-based OS.
Though the game is coming out on PS4 and Windows PC tomorrow, there is still no specific date of release for the free update on any console or computer platform.
[Source]: Steam Community: SteamOS Status Update – WBACon [Capcom].