https://www.bogleheads.org/forum/viewtopic.php?t=247046 explains the situation (posted below).
See also:
https://www.businessinsider.com/personal-finance/new-york-st...
“However, New York also has a provision called tax-benefit recapture, which essentially turns its progressive tax into a flat tax for high earners, says Eric Bronnenkant, head of tax at Betterment and a certified public accountant.”