Obviously this is an opportunity for Google to get into the business of making more payment apps. They're way behind the curve on that compared to their music and chat services, only having two at this point (Google Pay and Tez).
There is an obvious hole right there that I'm sure they could fill with a blockchain or anonymous gift cards. Or both! They could be the leading service provider for using the blockchain to verify gift cards in a distributed ledger and use it as middleware to convert gift cards into Google Points. What are Google Points good for? Anything cash is good for! So buying ad placements (on Google), music subscriptions (provided by Google), extra cloud storage (in the Google Cloud of course, 'scuse me, Google One), stock (in GOOG) and groceries (via Google Express).
Or you know, they could just inherit whatever agreements PornHub has with their existing payment processor that covers PornHub Premium on their way to reinventing Prime. That isn't as sexy as making 5 more payment apps though. Definitely not as sticky and not enough blockchain.