VIFF vs. Cobra
>> Can the F35 - A or B - stop in flight and go upwards?
>You mean the Cobra manoeuvre¹? That's a Russian thing though.
No, VIFF can only be performed by aircraft with moveable jet nozzles, such as the Harrier.
Pugachev's Cobra demonstrates being able to take an aircraft beyond 90 degrees angle of attack and back again while retaining control.
Both manoeuvres leave the aircraft at low speed, which is counter to general dogfighting principles.