I'm using firefox, but also I have a 4k screen. Maybe it's just psychological but it feels a lot easier when I put the window very small. This is what it's like maximized for me.
Thanks for the footage, that's very odd. It seems like planes have no trouble spawning, while food crates and some fish take more time and are less frequent. Spawning happens just off screen even if the camera's position moves, maybe a 4k screen is interfering with this but I'm not sure exactly how yet.