Personally, I think it depends on the angle of view and the front element diameter relative to the filter thread size. I once had vignetting issues with a cheap EF 35mm f/1.4 when stacking Freewell magnetic CPL and ND8 filters. I haven’t had that problem with the Canon RF 35mm f/1.4 VCM. If you’re not seeing any issues on the 24mm f/1.4, it’s probably because the VCM lineup has a really efficient optical design, with smaller front elements compared to DSLR lenses—or even Sony’s mirrorless glass. That also makes them better balanced, I’d say.
View attachment 223221View attachment 223222