Honestly it's not something that I've noticed. I'm completely blown away by the visuals - so expansive, colorful, and stunning!
Now if you're used to the Quest 3, then that's a different matter. I've only tried the Quest 3 as a guest and never as an owner, so it's difficult for me to compare. But from what I've experienced so far, the APV has so many advantages over my limited experience with the Quest 3, that any difference FOV is hardly noticable if at all.