There's been plenty of discussion, throughout the decades, on that subject.
My take: Qsound is something very specific and it is meant to work with actual speakers, not headphones.
Your anecdotical experience supports my take on the subject.
Anyway, I went and tried again with just my laptop (based on the person above effusing about it). Again, for me, I'm not hearing anything special, and nothing "3D" about the sounds, other than some left-right shifts. And I guess the music is in front of me, since that's where my laptop is ;)
https://www.youtube.com/watch?v=aeTVvhuco4g
Sure, it's christian rock, but from South Africa so it has a different vibe from what you may have previously experienced.
They got the intro synth to swirl around your head and it's a vibe, and the song itself is decent.