While most of the Leica S lenses have easy to match 72 and 82mm threads (thus most all of the alternative filter solutions for landscape ) .....the 24 S requires a 95mm thread . In addition even though you can mount the Lee or Schneider square or rectangular filter holders (100mm,4x4,4x5.65) they tend to vignette with the 24mm .
Not even sure that the 95mm screw in polarizers will work with out vignetting unless they are the slim mount (no front threads ) .
Has anyone found a solution that seems to be practical ...I know this stuff is expensive .(seems to be used more in professional cinema applications ).