I can access any server and Realms available to me (hereinafter simply "server") without problems, but after a while (30 seconds - 10 minutes) I am thrown out of the server with a "Timed out" error.

What I tried to solve the problem:
1) I changed the version - it didn't help.

2) Changed the Internet for a while (from 3G modem to 4G fast Internet) - it did not help.

3) I looked for answers on the Internet - I did not find it.

4) I tried ways to solve the problem when entering the server with "Timed out" - it did not help.

5) I played other games - in other games this and similar errors are not observed, everything is quite stable.

6) I played on different servers (both Hypixel, cracked servers, and even Realms) - this error is everywhere.

Upd.: Yes, Minecraft doesn't really send packets when it hangs, which I learned through Netlimiter. But how do I fix this?