I have played a "FemGale" by use of the Nexus mod "Galepal"
I didn't like her looks though, so you will most likely also need the Enhanced Edit / Origins Edit mod to resculpt Gale for maximum immersion.
Gale Pal :
https://www.nexusmods.com/baldursgate3/mods/2503Appearance Edit Advanced/ Appearance Edit origins :
https://www.nexusmods.com/baldursgate3/mods/899?tab=descriptionInevitably, some camp cutscenes will be a bit off. (Tara's jokes about "her" beard for instance). But they are rare enough, so it's by no means a gamespoiler.
There are similar mods for Astarion (Astaria) and Wyll. (Wylla)