This doesn’t talk about New Hampshire because we already had our primary, but I can tell you that they normally only count write in votes if that candidate has filed some paperwork to get counted, and I only know this because it was a big deal in 2016 when Bernie didn’t even take that extra step.
But apparently they count them in the primary because they were able to tell us that four or 5% of the votes went to “cease-fire”.
The Uncommitted Voter's Guide
How to protest the administration in all the remaining primary states.
https://www.ettingermentum.news/p/the-uncommitted-voters-guide