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