I think he is claiming that Hashicorp is a small company and that open source foundations are a ploy by big companies (like Amazon, I guess) to keep code available to them. That way they can benefit from the innovation of others. Then this will put off companies from developing open source since they don’t want these big companies to profit off their hard work.
This is of course all total bollocks and he is just a greedy C-suite douchebag who is butthurt that the open source community wants to continue using the open source software that they helped create.
Can confirm. Happened to me with my old laptop. Tried to upgrade it with some rescued RAM and it refused to use all of it. It would only use up to the laptops advertised max.
(Not the brand in question, but motherboards can definitely limit the RAM utilisation)