https://www.tweaktown.com/news/78089/oculus-quest-2-is-now-t...
"According to Valve's data, Quest 2 owners comprise 22.91% of all SteamVR users, while another 21.58% use a Rift S headset. Oculus also owns another 13.49%, with the original Rift, and Quest headsets added. All told, Oculus is responsible for 57.98% of all VR headsets used on Valve's platform."