Interesting results, but I am talking about the web as an application platform, not as the average users web browsing platform. I find it hard to imagine that users would accept e.g. something like Figma running without JIT, meaning that Figma would have no choice but to move native, thus running into the same problem. That said, for the average web user disabling the JIT by default may be reasonable.
Not really, at least on desktops: https://microsoftedge.github.io/edgevr/posts/Super-Duper-Sec...