No matter how strange it may sound, but when I have wi-fi turned on, Minecraft works like a buggy server
I explain that when you enter your personal world with wi-fi turned on, for some reason the world starts up longer than usual.

And after a successful download, it doesn't get any better: Blocks just disappear, belated sounds, mobs like mannequins, and so on... (Well, you know how minecraft works when, for example, the server freezes and everything that should work with a stable Internet does not work at all)

It would be nice if this problem was on some server, but not on the personal world!

When you turn off wi-fi or turn on the mobile Internet, everything works as it should.

 
On wi-fi: https://youtu.be/1tz0P9WF7KE

Off wi-fi: https://youtu.be/gC6xFaho7tk*

Phone: POCO X3 Pro (v. 12 SKQ1.211006.001)

Minecraft version: 1.19.20 (not pirated)

stable internet