Way, way too many game studios approached VR the same way they might a new graphics feature like raytracing or HDR. “Bolt it on and they’ll come” basically, which obviously didn’t pan out. Unsurpringly the titles that took flight were those where VR was integral to the experience and added lasting novelty — “AAA game but with VR” is just not that interesting (unless it’s a free community-developed mod, maybe).
Of course, it’s much more difficult and risky to develop VR-first games like that. With studios being more profit-driven and risk-averse than ever, that’s a recipe for vanishingly few new flagship VR games being developed. It’s a safer bet to develop yet another faceless loot box driven Fortnite/Counterstrike/etc clone or gacha game.