Microsoft definitely did: https://www.zdnet.com/finance/blockchain/microsoft-is-shutting-down-its-azure-blockchain-service/

I wouldn't be surprised if there were also serious internal discussions from some cryptocurrency booster within the ranks at Google as well.

And this is an example of the "AI as a continuation of the same grift as blockchain" pipeline, with exactly the same vague business wank with no substance behind it: https://www.aiunleashedglobalsummit.com/summit