You need a longer memory. The original gender bending music was "glam rock" in the 70s.
Queen, Marc Bolan and T-Rex, New York Dolls, Bowie as Ziggy Stardust etc. etc.
Androgyny goes a long way back and cycles in and out.
Grunge was a bit more "testosterony" but was boring as hell. The mid to late 90s was a meager time for music, IMO. Everything sounded the same and it seemed like very band out there was in a rush to copy the grunge sound.
If not for Oasis, the Verve, Blur, U2 and a few others the 90s would have been a complete musical wasteland for me.
I had to quit listening to the radio for awhile there.