My guess is you don’t really want to do VTOL unless you have to, because it probably sucks a lot of fuel and places different stresses on the engine and airframe.
Naval aviation might be different, because using VTOL in rough weather might present an advantage to a conventional landing or takeoff.
But I would think that the USMC would mostly use a runway for many operations, unless they were close to the front, and even then. It would make a lot more sense if there were a short stretch of road you could STOL from, rather than VTOL.
There is no VTOL (Vertical Take Off and Landing) version of the F-35. The F-35B Marine Corps version is a STOVL (Short Take Off and Vertical Landing).