It is sometime back since I used that term being confined to CAS. The important bits are "cleared for XYZ " and a landing clearance and it is always the landing clearance which determines your landing.
Final or finals was always an indication to other aircraft and tower or who ever was giving a FIS that you are in the final stages before landing.
Sadly the term was abused and used to being 6 miles out on the runway centreline

rather than a specific distance from the threshold to indicate that you are about to land and that needs to be clarified to have any real meaning with death by hanging if you panic call it at 6 miles out
Pace