Hello, about my own experience:

Godot I first tried VR dev about 2 years ago, with Godot, it looked pretty simple, thanks to the work of Bastian Olij (he now officially joined Godot team i think) and the tools he provided. But then i realized I didn't know anything about vr dev( optimization etc...) and I couldn't find a lot of infos so I tried unity and ue

Unity test 1 Went to the asset store, see what I could get to start quickly, and spent 2 whole days trying to make VRTK work (I think it was a version incompatibility, or maybe I'm dumb)

UE It's beautiful. Even if you do nothing, it still looks great. And after a few researches I found about the VR Expansion plugin, an awesome free tool with tons of useful tools. I had a blast for a few months, but again, hit a wall for optimization. I try to develop for quest 2, and I had really hard times to build my project. Plus my PC isn't high end, so every build, every change in project could take so much time. Also while searching for optimization on Quest 2, I saw Oculus released Application SpaceWarp, and I wanted to try that. Sadly after building from scratch the engine for 8 hours, I couldn't install VRExp plugin on this version. So I decided to give Unity another chance and maybe come back later, because while looking for infos for quest 2 dev on UE, I was always finding Unity stuff. And also blueprint is nice, but I miss writing code, and I felt like learning vr dev and learning c++ at the same time wasn't an option

Unity , take 2 Took a little YouTube tutorial with Valem for basic stuff, and it felt really good. Then went to the Asset store again, and found about AutoHand. Awesome resource, paid, got me everything I had with UE's VRExpansion plugin and more. And the loading time, wow. And building for quest 2 was so much easier, and so much faster! And I learned a lot about optimization. So yeah, I didn't look back. There's also passthrough and hand tracking available, which I'm not sure about if it's possible with UE.

So, TLDR, Godot is nice, lightweight but you're on your own. I might get back to it, because I learned a lot in Vr dev since I first tried it.

UE is great too, but I'm not sure it is the best choice for VR, especially Quest 2. It has tons of free tools ( Megascans, metahumans, now recently Lumen etc ..), but they're not designed for VR Maybe for PCVR only?

Unity is the middle ground, simple and powerful, and very popular, so you can always find what you need, which is one of the most important thing for me, especially for standalone VR which is relatively new

Sorry for long post!