I assure you the reason Microsoft hasn't activated EAC on Halo Master Chief Collection on Linux (even though it runs campaign mode and private coop flawlessly) is not due to laziness. The industry is rife with monopolist designs and patronage. This is the reason DirectX was created in the first place even though OpenGL already existed.

God forbid I could use my tiling window manager to add splitscreen back into a game they deliberately removed it from.