I remember testing it at the time, and while the performance wasn’t the best, there seemed to be some underlying issues. I too had issues where the cockpit looked extremely jerky, but the world itself looked smooth. It very much look like an issue with how the game was interacting with ASW so head movements were not being smoothed.
It was an experience I would definitely describe as unplayable, there certainly no way you could actually fly that experience in VR for more than a minute or two. Presumably the people who think it’s fine aren’t bumping into this specific issue.
My system has a 5950X and an RTX 3090. Even with the render scale at 50% and every detail on low I still couldn’t get it to be anything close to smooth. Works perfectly outside of VR though.