Not that we can ever prove it one way or another, but I'd be willing to bet there are separate teams internally. One working on immediate bug fixes and then a second team working on 26.1.Even though I think 26.0.1 will come first, I can see 26.1 beta coming first, but not because of iOS 26 being stable. I can only see it happening because they’ve likely been working on 26.1 longer, and might need a little more time to fix the bugs for 26.0.1.
But then it would make sense to put 26.1 on the back burner and put all their energy into 26.0.1. But you never know with Apple.