* IBM had little to do with Red Hat's maneuvers around CentOS (I worked at Red Hat for several years and still have friends there, and nothing anybody there said publicly about CentOS in 2020 or 2023 was materially different from things people there were saying about it internally in 2012). Some people have tried to blame IBM for a general culture shift but as far as I've seen, every bit of the CentOS debacle was laid squarely at the feet of Red Hat staff by most in this industry -- as it should have been, since most of those involved were employed there well before IBM bought the company.
IBM's reputation as an aging dinosaur was well-earned long before it bought Red Hat, and continues to be earned outside it. That earned reputation was why they bought RHT in the first place: IBM Cloud market share was (and still is) declining and they wanted a jumpstart in both revenue and engineering credibility from OpenShift in particular.
I expect, like RedHat, that the Hashicorp acquisition will result in a lot of startups that do not need enterprise-grade products shifting away from “anything Hashicorp offers that needs to charge money for Hashicorp to stay revenue-positive” and towards “any and all free alternatives that lower the opex of a business”, along with derogatory comments about IBM predictably assigning a non-$0 price for Hashicorp’s future work output.