Chrome was installed for me with no option to uncheck.
I also have unchecky running !
very sneaky tactics
This topic is completely different there are however topics going back a very long time about people ending up with Chrome installer.
I have never had Chrome installed on this or any of my other systems.
Always do a Custom install and ensure you uncheck any options that you don't need/want and always read what is on the various screens that are presented.
Just one point, are you talking about Google Chrome, rather than the Avast Secure Browser which is based on Chrome ?