Also not OP, but I use my quest 2 just about every day, so I could share a bit.

I've gone through phases since purchasing it where there is one game or another that I get into, but the general theme has been something with a 'physical' aspect to it + skill development (Beat Saber is a characteristic example here). The exception from that theme was when Half-life Alyx came out—I enjoyed it and put a good amount of time into it. Similarly, when I've felt more social I've deviated from my usual pattern and used Big Screen VR (social movie/tv watching app with virtual theaters/lobby) to hang out and talk with others.

Currently—and this has been going on for months—I play Zombieland VR: Headshot Fever daily. My sessions are typically between 20min and 1hr. For me it's a great way to get into "flow" because it forces you to keep your attention on your external environment, precisely control your actions (i.e. aim accurately), waste absolutely as little time as possible (the goal is to beat levels in smallest amount of time, compete with others on high score list)—and the biggest selling point: I can do this while standing up and moving around a bit, it's not going to keep me at my desk where I've already been all day.

I've been using the headset regularly since I bought it (a couple months after it was first released). I've gone through "dry spells" with it where I kind of forgot about it or didn't have anything I felt like playing—but mostly I've found consistent use for it.

No OP, but I mostly use it to play "hangout" games with friends who live in different countries, such as ping pong or minigolf. Much more fun to hang out and play a casual game and talk than sitting in a Zoom call with them. Sometimes I also play a quick round of Beat Saber or some other game.

How often? Couple of hours a month

Long term motivation? Do more social stuff with remote friends and, once it's more comfortable to wear for more than two hours straight, also work in VR.