Well I'm happy to provide all the feedback I can! I had the experience last year of vastly overscoping on mechanics and ended up with only a tiny tutorial level with one enemy lol.
Some playing around with the FOV I don't think would hurt, and I would also recommend combining that with experimenting with the camera placement in the player tile. That's just advice for something to do in-between this jam and next year so you have time to try what feels best. For this specifically I think it's more the grid in the world itself that's the issue. Because it doesn't matter how comfortably the camera is setup if there's tiles where the walls intrude too far on the player position.
But hey, this is all part of the learning experience! Good luck with your future dungeon crawler work!