Earlier quoted context omitted.
This never happened as far as I can tell.
It didn’t. They did append their affiliate id to type-ins for a single crypto exchange once. They quickly retracted and apologized. That’s bad, but not nearly as bad as what the parent commenter described.
They didn't do this either. There was an omnibox site suggestion that included an affiliate id. Nothing got appended and people were able to see the affiliate id before hitting enter to visit the site. These site suggestions could also be disabled in the settings.