Just to test, my girlfriend and I enabled the “adult sexual content” option in our preferences and went through fresh discovery queues. She got zero porn games, and despite the fact that I actually play visual novels and assorted Japanese games on Steam, I only got one thing resembling a porn game, and it’s been on Steam for a year. I did a second queue, and (along with a crazy amount of high-profile Japanese games, like Yakuza 0 and NieR Automata) got another year-old game from the same developer as the one game in the first queue, plus a random Russian HuniePop knockoff that was added a few days ago. 24 games, and only one “adult game” that was added after Steam changed their rules.