I’m an electrician, and I could definitely see myself writing out formulas to calculate pipe fill/overcurrent/etc.Mathematician here.
Some of us have bits of screwed up paper all over the carpet.
Some of us even use Goodnotes.
Some of us use LaTeX.
Some sickos use Word.
NONE of us use Notes for mathematics and probably never will even if they improve it.
At the moment I bounce between calculators and notes, just copying and pasting values, so this would be a nice update for me