A few companies in recent history have actively gone out of their way to make the PC versions of their games impossible to run on Linux, despite the game working without problems through wine or other Windows emulation methods simply by removing said system designed solely to prevent the game on running on anything except Windows.
In some cases, it was instead just making the anti-cheat directly tied to the Windows Kernel, which obviously doesn't work since Linux doesn't have said kernel.
You don't have to make an official Linux release, the people over on this side of things will find a way to get it running unmodified as long as there isn't something actively blocking them out.
