I guess these are the standard Air Force model. I think they make 3, that one, the tailhook Navy, and the VTOL Marine. I thought they were still having problems with the VTOL.
What I’ve read so far about the F-35B variant is that its working and has already been delivered to a few nations, like England ect.
The British Navy just lost one recently during training for their new Carrier. I think the story there was negligence, not because of the F-35’s STOL
FYI, the AF version has a tailhook.