I might be able to help on this one — I did some of the early work on Exposure Notification tech and was somewhat involved with discussions between Apple/Google/a few governments.
We partially answer some of your questions here: https://arxiv.org/abs/2306.00873. I'm also happy to try to answer any related questions (some parts are closer to informed guesses and didn't make it into the academic paper).
I might be able to help on this one — I did some of the early work on Exposure Notification tech and was somewhat involved with discussions between Apple/Google/a few governments.
We partially answer some of your questions here: https://arxiv.org/abs/2306.00873. I'm also happy to try to answer any related questions (some parts are closer to informed guesses and didn't make it into the academic paper).