NYC seems to like incumbents in the mayoral office, even if they're personally unpopular? So I think Adams is safe.
If there's a defining trait about NYC mayors, it's that they're never popular. It isn't about what the residents think, it is more that there is such a high opportunity cost for going up against a mayor that most would rather sit on the bleachers until the mayor refuses to run again.
This. Which is why the person who is seemingly right now making the most noise about potentially challenging Adams is Yuh-Line Niou: someone out of office but still with significant credibility among certain constituencies.