I have seen companies that had ten times as many microservices than devs, our industry is full of cargo culting, ignorance and resume driven development.

While there is sometimes good reason to use TS, often you might be better served using JSDoc so you have type safety without the compilation step.

I currently see the direct comparison as my company has one project that uses old-school php backed rendering with a bit of vanilla js sprinkled it and one with modern React and TS. The React team is significantly less productive and the code is much harder to maintain, has more bugs, is less performant and harder ton onboard people to. But when I suggest that a new project does not not need to be a SPA, I always get booed.