2 gamebreaking Noclip bugs

The most gamebreaking bug
(Video not made by me)
https://youtu.be/q3BvjYdqM0g?si=ZVUGx5g5SaifvyVW
Watch full video pls

At high distances like 399999 (x distances form 0 0 0)

Observed Results:
Game glitches A lot

Expected Results:
Nothing Special To happen

Notice:Mainly I'm talking about block corner clip Which was shown at the beginning of the video