What is left after uninstalling avast & AVG?

Avast Free Antivirus / Premium Security
1

You will find this file on your PC after uninstalling avast & AVG
C:\Program Files\Common Files\AVAST Software\Overseer\overseer.exe
C:\Program Files\Common Files\AVG\Overseer\overseer.exe

This file will connect google’s DNS 8.8.8.8
Many thanks.

2

Using the Uninstall Utility for Avast Antivirus
https://support.avast.com/en-ww/article/Uninstall-Antivirus-Utility

3

I am not sure that avastclear.exe removes the overseer files. :-\