If ANY of the evidence used in the trial came is connected to Trumps official acts as President, it most certainly falls under the immunity ruling. ALL of the evidence in the trial came from the time when Trump was in the White House.
It may be a hail mary, but it was aalso a point of contention in the trial itself.
Reading the letter from President Trump's attorneys, it does indeed look interesting that evidence entered since 2016 when he became President may be problematic. Will be interesting to see the response from DANY.