They created TypeScript, and maintain it now. It's not exactly a business for them, no one is buying "TypeScript Enterprise" subscriptions. It's all under the Apache License 2.0 and certainly big enough that if they started pulling anything untoward, it would see a fork. Sometimes Microsoft produces an unalloyed good, they're not a monolith.

> They own Typescript? I wasn’t aware that they control the organization,

I genuinely don't know, got curious and went to typescriptlang.org to find some "About" page or "Governance" or something else, but couldn't find anything at all about it. It was exclusively developed by Microsoft for two years, and with no other clear governance/decision structure today as far as I can see, doesn't that exactly mean that Microsoft controls the entire "organization"? It's not clear what "organization" you're referring to either, the GitHub organization? I'd assume that's also 100% Microsoft controlled.