I don’t know, but it does look like the Guiness Book of World Records record-holder is male, so there’s that. On the other hand, the record notes his wife is the world burrito champion, so…:

https://www.guinnessworldrecords.com/world-records/24214-most-hot-dogs-eaten-in-3-minutes

Most hot dogs eaten in three minutes

Who: Nicholas Wehry

What: 12 total number

Where: United States (Tampa)

When: 22 October 2022

The most hot dogs eaten in three minutes is 12, and was achieved by Nicholas Wehry (USA) in Tampa, Florida, USA, on 22 October 2022.

Nicholas Whery is married to fellow competitive eater Miki Sudo, who achieved the fastest time to eat a burrito on the same day.

EDIT: No, from her Wikipedia article, it sounds like they have separate men’s and women’s competitions:

https://en.wikipedia.org/wiki/Miki_Sudo

Miki Victoria Sudo (born July 23, 1985[2][3]) is an American competitive eater. She won the women’s competition at the Nathan’s Hot Dog Eating Contest every year from 2014 to 2020, unseating Sonya Thomas, who had won the women’s competition since its inception in 2011.

The Guiness Book of World Records apparently doesn’t for that single “three minute” category, but does apparently track the per-gender winners of this Nathan’s competition:

https://www.guinnessworldrecords.com/world-records/546576-most-hot-dogs-eaten-at-a-nathans-hot-dog-eating-contest-male

https://www.guinnessworldrecords.com/world-records/546693-most-hot-dogs-eaten-at-a-nathans-hot-dog-eating-contest-female

They used to be. The Major League Eating split them up a few years ago. The current women’s champion, Miki Sudi, would place 6th in the men’s with last year’s results or 3rd in her best year. There is no reason women could not be just as competitive. Size sure as hell is not much of a factor considering former winners have been like 135 lbs.