This is a recent VR game by the makers of Sairento, which was one of the original Quest games a few years ago now. Its a spiritual successor, with similar weapons, and enemies, and movement.
Essentially you run through a gauntlet of various rooms, taking on a swarm of enemies in each one before you get to a boss - while upgrading your spells, stats and weapons along the way.
I found the pistols to be decent, and the stone throwing to be particularly cool though I was bad at aiming them!
Got to the first boss, Despair, and defeated it on this first run!