Game won't install untill you change "Browser 2" to "Browser 1" in FFXIV_BOOT.cfg in /home/.steam/steam/steamapps/compatdata/39210/pfx/drive_c/users/steamuser/My Documents/My Games/FINAL FANTASY XIV - A Realm Reborn/

Then after first failed start change "CutsceneMovieOpening 0" to "CutsceneMovieOpening 1" in FFXIV.cfg in the same directory.

A little glitch reveals in launcher. When logging in if I click Login button after entering ID and password java error appears. But if I press Enter in textbox game launches alright.