Quick Q: Is this the issue addressing that once I add

{
  "compilerOptions": {
    "jsx": "react-jsx",
    "jsxImportSource": "preact",
    "strict": true
  }
}

to my compiler options, I get a JSX element implicitly has type 'any' because no interface 'JSX.IntrinsicElements' exists.ts(7026) error, because TypeScript does not add the jsx-runtime types?

Is there a workaround for that at the moment?

Sorta, this issue is about automatically including import source types, but it does have a simple workaround - also add "types": ["react"] to your options.