Why do companies prefer Node.js with TypeScript instead of plain JavaScript?

was reviewing several job postings on LinkedIn and noticed many roles specifically ask for Node.js with TypeScript rather than just Node.js (JavaScript).

From what I understand, TypeScript is compiled to JavaScript and mainly provides static type checking at compile time, while the actual runtime still executes JavaScript.

This made me wonder:

If TypeScript is primarily used for type safety, why do companies strongly prefer Node.js + TypeScript instead of writing well-structured JavaScript with runtime validation/middleware checks?

Specifically:

What practical problems does TypeScript solve in large Node.js codebases that JavaScript alone cannot?

Is compile-time type checking the main reason, or are there other major benefits in real-world production systems?

In what scenarios would plain JavaScript still be a better choice?

I’m trying to understand the engineering trade-offs rather than just following industry trends.