Costs more and takes longer yes.

I had to manage a team of about 8 women in a game dev company a few years ago and a lot of time was also lost due to drama and infighting.

Constantly getting pulled into meetings over petty shit, people refusing to work with each other, people crying. It was like highschool.

Worked with some really great women too of course, but that one team almost caused me to quit.

Its also really gross getting notifications everytime someone on my team is having a period and books leave. Makes me feel like a pervert.