Google is now telling users its apps are out of date. No updates are available
My unpopular opinion is that these specific Google apps are advertising supported, and Apple are cutting them off from advertising revenue with the unavailability of IDFA on iOS14.5.
What is the motivation for Google to maintain these apps on iOS if these expensive apps no longer earn revenue for the company?
It will harm Apple iPhone sales if these apps are no longer available on iOS as they are some of the most popular in the world, so I'd say there is either wheeling and dealing behind the scenes to cut a deal where Apple pay Google to maintain these apps, or Apple are in panic mode trying to bring their own apps up to the level of the Google ones. Google Maps and Apple Maps may be near equivalents in the USA, but in the rest of the world Apple Maps is far behind.