Google also pays Apple 7 billion annually^ to be its default SE. Despite Adwords' incredible profitability, Yahoo & MSFT's experience as 2nd place in that market was working very hard and earning $0 profits... Their Revenues @ were far lower than proportional to their market share, and costs are the opposite. Better to just take your share of monopoly profits than work hard competing, unless you expect to win their place.
This stuff is the norm. Maybe we should switch to being surprised (delighted?) when these guys compete at all.
^https://www.forbes.com/sites/johnkoetsier/2020/06/08/apple-c...