To me, the defining quality of Model Fs is the layers of plates under tension and compression that give it "life"
A Model F has a metal front plate and individual barrels, and a metal back plate with the PCB mated to it.
In my opinion, this is a Model M with an alternate switching layer.
Model F pivot plates ("flippers") would enhance an argument for it being more Model-F-like, while the smaller Model M style would make it an M for certain.
In my opinion.