This I agree with. For example, I am on the Nexus Cyberpunk and start a search there. The (totally unnecessary) window pops up and I search for example for light.
I am on the mod page of Cyberpunk, so logically I would expect the Cyberpunk content connected to light to appear.
But no: instead I get a search for whole Nexus? I am on Cyberpunk Nexus, I don't care about other games like Microsoft Flight Simulator or a user called 0000daylight0000.
I now first have to specify in what category. Okay, that would be mods. The mods appear but there are to many to fit in the window. So I click View All Results.
Now the window disappears, and finally I am at the part where I can really search.
All this is totally counter intuitive and not logical at all.