When I'm loading into a world, it says "loading terrain" and I hear game sounds for around 1.85 seconds before I can actually see anything.  Due to the effects of this bug, spawn protection time is now almost divided by 3 because it's been cut to around 1.15 seconds, and you're vulnerable to void damage (when you log on) for 1.85 seconds.  This could lead to you dying before you could throw an ender pearl back up (and not to mention you fall out of range before you can even do anything) and it's all because the game places you in the world before you can even see anything.

Oh, and it affects version 1.18.2 as well but I couldn't find it on the list.