The top reasons I've seen indie devs mention for doing linux support are either "I write the code on linux, so it makes sense to have the game work there" or "I

The top reasons I've seen indie devs mention for doing linux support are either "I write the code on linux, so it makes sense to have the game work there" or "I do it because it's the right thing to do to make my passion project to more people". Never because it was financially worth it.