The article words it confusingly:

It’s also worth noting that Starfield will only support 60fps on PC.

If you follow the link in the article, what they are actually saying is: 4k 60 ain’t happening on Xbox, and 60fps is only possible on PC. They aren’t saying PC is locked to 60fps.

It’s only locked on XBox, afaik there will be no fps lock otherwise

if it’s like previous iterations of their engine, the physics break above 60fps

I read that, but I don’t believe it. I was able to get my FPS up way past 60 on my current playthrough on Skyrim, and they both use the same core engine code. Of course, I’m using mods to do it, so that may be the reason why my physics isn’t borked. But I’ll be using mods on Starfield, too, so no loss.

Where did you hear that? I haven’t seen any PC frame rate announcements, just the Xbox ones. I didn’t watch the video to prevent too many spoilers. FO76 can do above 60 and so can the VR ports, so chances are good, but can’t say for sure until an announcement or release.