I have been looking to see if this request does not yet exist. It surprises me, but I have not found it. Maybe my bad English?
I am currently using an Everdo note manager that only displays tags related to the selected notebook. This allows, as we go down in the notebooks, to finish the search by clicking on the tags.
By clicking on CTRL, one can even make a logical "AND" that further restricts the display of notes. I find that tags would not be of much use if at the main level I have dozens, even hundreds of tags.
I hope I have been understood? For now, this is my main obstacle to abandoning my everdo application