Where did these creepy google/gmail icons come from?
After slightly more digging, I see that Chrome now (it's a new behaviour, likely 2-3 months old) bundles them with new installs, since I use the chrome command separately to create new instances, it added those icons just now, for that instance specifically, so when I click them, they just open the main Chrome and not the webpages

Still pretty creepy tho, they seem to be only removable from ~/Applications - and a restart is probably needed for a refresh

Edit: After a while the icons disappear after removing the files