honestly the way Avast incorporated Google products (it’s not just Google Chrome, but also Google Drive and Google Toolbar)
is very unfortunate and annoying and on edge of being viral,
it causes problems to older people using avast (seen it on my own parents) when program major update happens

don’t get me started about the Chrome setting itself all off sudden as default browser or ‘Google services’ silently infesting system

sorry to say it but such approach is shady even by my own standard