You're kinda preaching to the choir here on HN, where many people feel the same way (not me personally, but generally speaking).
That's fine, you can still use Typescript with vanilla JS and not use any frameworks. Typescript shouldn't result in unnecessary code in production. It's just developer hinting during dev, but it gets removed during the build.
If you don't want to use a build tool at all, you can also use JSDoc formatting to provide some basic type and parameter information. Your IDE can still use that to provide hints.
It's totally up to you. If it's a solo dev codebase that only you ever see and you don't want to type it, then don't :) If you do end up wanting to share the code though, Typescript makes it a lot easier for other devs to use because they can instantly see when something is wired up wrong during development.