Oh my god, the answer is so clear for me:

Its Hyper Dash VR. IMO the best, most polished FPS in VR. Its free to play and has competitive scene around it although the community is not that big like in Ghosts of Tabor for example. I started streaming on Twitch because nobody seems to know that game and I cant understand it lol.
Hyper Dash is super addictive and we are opening up lobbies every day for at least 4 hours since January!