Right. And at least I find phone use to be markedly different from e.g. computer use in this respect. It happens on the go, unpredictably, and not for very long

Right. And at least I find phone use to be markedly different from e.g. computer use in this respect. It happens on the go, unpredictably, and not for very long at a time. I'm totally fine swapping to a different set of glasses when sitting down to work on a computer for three hours, but it's a much bigger hassle to do for a lot of phone use cases. (I don't like any kind of varifocals.)