Not surprised one bit at the low usage.
Correlates perfectly with the Meta report in Oct 2022 when they said 50% of VR owners stop using it after 6 months.
VR is something that sells niche to start with (compared to people gaming the traditional way with gamepads or m/kb or smartphone), and I'd bet if you looked at the usage there's going to be hardcore users using it a lot, then the rest barely touch it. Similar to mtx. A good portion of revenue comes from a tiny subset of users. The rest either barely buy any or none at all.
VR kind of reminds of people who buy expensive kitchen appliances. $500 stand mixers and countertop toasters that can broil a whole chicken. A small number of people want it bad and buy it. But chances are when youre at their house for dinner, you've probably never seen them use them once. It's like they bought it for sake of telling people "Hey I got that!", but dont really have any intention of using them. Instead, they'll use a $40 blender or Black & Decker toaster they bought from Walmart.