So how the tracks under the transparent track have the result of applying an effect in transparent track.
.- There is NO results or changes on the layers under the transparent track, it is NOT an adjustment layer.
It’s not much you can apply in the invisible layer and, repeat, there is NO effect, variation or change on the layer(s) underneath.
Some GENERATOR-type effects, like Knoll lighting effects, particles and, of course, Titles.
It is a simple. common and ordinary alpha layer, nothing special.
So, basically, it’s not a feature to jump out of joy.