I'm not any more concerned now than I was when she was up marginally.  This has been a toss up election since the day she took over.  This years polling is all about the weights they are choosing to use.  Most people are using weights that are trying to make 2024 electorate look like 2020's results since the 2020 polls were so far off.  This is a practice that has generally been considered to be flawed.  

The 2016 miss on the polls was small and it was mostly Clinton losing votes to the 3rd party candidates.  The 2020 polls were a huge miss.  I have no idea what the right thing to do with this information is but it makes the polls harder to trust this year than in the past.