I set up VR using this guide: https://help.minecraft.net/hc/en-us/articles/360057619052, using SteamVR as the OpenXR runtime with Virtual Desktop on a Quest 3 (OS v65).

Chunks at the far right edge of the screen are missing. It's most noticeable when flying around the world in creative mode, but it also happens on the ground and in survival. It looks like the game is not using the full FOV that the Quest 3 renders.

The missing chunks only show in the right eye's display, they are too far to the right to be visible to the left eye.

This bug does not happen on the left-hand side of the viewport, only on the right.

Since it only happens at the very edge it can't be seen on in-game screenshots, but I took some photos and videos through the headset lenses that clearly demonstrate the bug.