No, not at all - it returns the projected world space location - whether you Tick it every frame or trigger it on click is up to you.
If you want to trace manually, do so. if you want something more elaborate, look into Line Plane Intersection
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Dude, I think I explained clearly what I wanted to do on the subject.
Why these 2 nodes then? Not suitable here.
Did you mean to:
As in the subject?