Completely agree. Even with the basic LLMs in the $20/month Cursor plan, I can work 10x faster on TypeScript codebases than I could otherwise, while for Python that multiple feels more like 2-3x. The autocompletions are especially impressive when there is a well-organized type system.
Also in response to adjacent commenters - many mission-critical TS codebases will disable the use of an explicit "any" with eslint - https://typescript-eslint.io/rules/no-explicit-any/.