I think he was asking whether any citron fruits might be in shops in New
York

Not at this time of year. It is only used for the Jewish holiday of Sukkot,
which occurs in September or early October.
Is this citron the same thing as what the French call bergamot?

I don't know French, but in English bergamot is another name for beebalm,
Monarda didyma. Citron is Citrus medica.

Iris,
Central NY, Zone 5a, Sunset Zone 40
"The trouble with people is not that they don't know but that they know so much
that ain't so."
Josh Billings (Henry Wheeler Shaw), 1818-1885