Top 5 games on steam alone account for 50% of the player base, their player base estimations are (as per Google) 4-9% female for the most played (Counter-Strike), 3.5-6% for the second one, <15% the third, ~25% fourth, ~10% fifth. Of the other games in the top 100 about 75% are other equally male-skewed games, and that makes for more than 90% of all players. You might not want to make assumptions based on that "little to no information", but I'm more than happy to, because it's obvious. Your 20 years might not line up with that, my friends list does not align with that either. But that doesn't change the very obvious reality that Steam is mostly guys.
Anyway, I don't particularly care about discussing with you because you obviously enjoy your head buried in the sand, so I'll leave you to it. I just wanted to make sure anyone who ends on this thread can see that just with some quick napkin numbers it's trivial to estimate, with pretty good confidence, what should already be obvious to anyone who has ever been on Steam: that it's a sausage fest.