Re: I'm baffled
Yes while I don't use it much since I prefer DDG I have noticed in the last few months the google search app will show an option "from clipboard" among the search options if I have recently copied something but not pasted it elsewhere. If that's what you wanted to search on you can just click there and save a second over doing regular paste and hitting search.
The fact it doesn't show that if what was copied has been pasted elsewhere is interesting. I'm not sure if the app still has access to it but knows it has already been pasted so it isn't likely to be what you want to search on, or once it has been pasted it is no longer accessible to the app.