They have affiliate bookmarks and as well as links that are injected when you type things in the address bar.
They don't append their affiliate code when you type the full url (like brave did that one time) at least but I feel like adding undisclosed sponsored suggestions to the autocomplete counts as "injecting".
They don't append their affiliate code when you type the full url (like brave did that one time) at least but I feel like adding undisclosed sponsored suggestions to the autocomplete counts as "injecting".