Below is a list of links for downloading (or usage guides of) dedicated uninstallers for 3rd party AVs.

Name of Antivirus Link
Norton https://norton.com/nrnr
AVG https://www.avg.com/en-us/avg-remover#pc
Avast https://www.avast.com/uninstall-utility
Malwarebytes https://support.malwarebytes.com/hc/en-us/articles/360039023473-Uninstall-and-reinstall-Malwarebytes-using-the-Malwarebytes-Support-Tool
Kaspersky https://support.kaspersky.com/common/uninstall/1464
McAfee https://download.mcafee.com/molbin/iss-loc/SupportTools/MCPR/MCPR.exe
Bitdefender https://www.bitdefender.com/uninstall/
ESET https://support.eset.com/en/kb2289-uninstall-eset-manually-using-the-eset-uninstaller-tool