I think microsoft is the only large hyperscaler that seems to take this as more than a shallow PR push. Their goal is carbon zero by 2030 - not net zero, but actually removing as much carbon from the atmosphere as they put in. They pay for actual carbon removal and help develop that tech in order to get there. And their targets are all three classes of emissions (ie including indirect emissions) which no other tech company even talks about. That's recognized within the carbon monitoring industry... I think they're on the CDP A list for carbon for the third year in a row now? (Amzn and goog have never been there)
On the other hand, I don't see people in tech making buying decisions based on this. Why does your company use AWS or GCP, and did the "nothing more than PR" state of their climate commitments even come up in that decision?
Complaining on the internet is fun, but changing buying habits is better.
I mean if the company market cap is skyrocketing and they're making money hand over fist, I think you can read any pledge as "we pledge to do this thing as long as the money continues to pour in at the current rate or better."
Whenever revenue starts contracting, all the old promises are basically empty words.