how to query users that are not followed by the user in firestore? firebase structure:

firestore (root)
  ----users (colloection)
      ----user (doc)
         uid: "xyz"

  ----following (collection)
      ---- current users uid (doc)
         ----- following (collection)
              --- user followed (doc)
          ---- followers (collection)
              ---- users following (doc)

I am building people recommended to follow like facebook

And i want to query users that are not followed by me, is that possible, if so pls answer with the js query snippet?

I am using: firebase web 9