That must be a new feature? This didn't exist when I got my UHK, and was why I ended up selling my Moonlander.
How long does the flash take? Having it in Chrome is a great step forward, but if it still takes 10-20s to flash that would still prevent the sort of feedback loop that I found so transformational.
Seconds. I mean, something on the order of that, anyway. Fast enough to iterate but I mean it's still the weakest link in the iteration chain of course.