Thanks John,
I think Turbotax is correct, just isn't clear, until I dig into the Form 8959.
Turbotax explains to me like this:
"You made Total payments of $XXX for 2023, which included W-2 withholdings of $YYY and other withholdings of $ZZZ."
I just realized that turbotax included "Withholding Reconciliation" on form 8959 line 24 (which is $ZZZ above), which is what I've over paid (by multiplying my total income with the base tax rate of 1.45%, vs box 6 of my W-2), then turbotax explicitly calculate again of my Additional Medicare care tax expected to pay (the amount above $250000 for married filing jointly, multiplying by 0.9%), so actually it factored into the amount I already paid from all my W-2 and was trying to reassess additional tax part, which is correct then.
