Visual bugs

Graphic bugs, black lights, highly simplified block textures

What I expected to happen was...:
I expected the world to launch without graphical bugs.

What actually happened was...:
After the creation of the Minecraft world, at a certain distance from the observer (the player), undrawn textures appear, black lights appear, the upper surfaces of the blocks in the distance have no textures (black color), when jumping (any change in height), the water level "jumps" with the player, water is not drawn in the distance.

Steps to Reproduce:
1. Just create a minecraft world on OptiFine version 1.21.4 and enter it.
2. Visual bugs will appear by themselves, no actions or triggers are required for their appearance.