Bring back old box Ctrl+F microsoft word, new sidebar is bad [duplicate]

old MS word gave you a popup box and the box just worked and functioned. the new MS word brings up a massive side bar like slamming a train into the side of your house and it – most importantly – DOES NOT WORK. it doesn’t do the simple simple things i want it to do and it just is terrible for so many reasons because microsofot.

in one sentence: how do i bring back old ctrl F please