The design is unique since it is likely creating drag of airflow so you will see none of that particular nose design applied in other fighter that see speed is important but there should be reason of why they are doing that.
As I am not an expert, I cannot explain of why the design is like that. I think in this forum we have several aerospace experts like @JamD
and one Vietnamese American with professional title that can explain the plus and minus of that design.
I would not call it ugly though, that is Stealth design, you can also say F117 as ugly but most defense enthusias love that design.
F 117 also has the design that can create drag, but the plane is a bomber, not fighter.