I am making a vanilla adventure map in 1.15.2 and I can't see the "/particle falling_dust (anyblock)" particles through white stained glass pane, but i can with normal glass pane and iron bars, in the image attached i was using a repeating always active command block with:

/particle minecraft:falling_dust snow ~-0.3 ~7 ~0.3 0 0 0 0.1 10 normal