Macbook Pro says AVAST Antivirus Security is still installed- but it isn't
I had to download Avast Security to use the wifi on my school's campus, but it wasn't working once I installed it, so I uninstalled it. I tried re-installing Avast and installing AVG, but each time, my Mac says that I need to uninstall Avast first. Avast does not appear in my applications or anywhere in my finder, so I am confused as to what I should do. Any help is appreciated, thank you!
This is for my 2021 Macbook Pro