These? No, they’re too short, and often simplified to the point of being highly specific to exactly the given view. Many shaders on shadertoy will read mouse position; what the author does with it is up to them!

You could certainly try cloning the examples and messing with them: turning some number between 0 and 1 in the code into (mouseX/screenwidth) could prove interesting!

Most of these sites have a culture of learning from modifying and remixing other examples; just give credit where due