Sort of. The thing is, a truly massive number of dating sites are owned by Match Group, which used to be part of IAC.

Bumble and Coffee Meets Bagel are two examples of major non-Match-Group companies.

My impression as a 30 year old het guy in SF is that the big 3 are Tinder/Bumble/Hinge, roughly sorted in order of "casual" to "serious relationship".

According to friends, OkCupid seems to be baaarely limping along in queer/poly circles.