@K-9JerryLee + @venoboyCITY
Sure, Linux is everywhere but you wouldn't play BF on the international spacestation, on submarines or on automated cow milking machines. When he said almost noone uses he's obviously talking about people having desktop computers capable of actually playing the game in a demographic that actually want to play the game.
That being said, I would personally find it awesome if BF5 came out for Linux. For that to happen though I will believe that what you need to ask for first is proper graphics drivers from AMD/Nvidia and then Vulcan support in the Frostbite engine. Both those milestones are not really suitable topics for this forum but I wish you all the luck in the world 🙂