Before You File a Bug Report Please Confirm You Have Done The Following...

• I have tried restarting my IDE and the issue persists.
• I have updated to the latest version of the packages.
• I have searched for related issues and found none that matched my issue.
• I have read the FAQ and my problem is not listed.

Playground Link

https://typescript-eslint.io/play/#ts=5.2.2&fileType=.tsx&code=FAYw9gdgzgLgBAUwDZwLxwCZhAVwLYIQwB0AjjggE4CeAysgiDGJQBQDkGAlgIZJgBzdgEo4PKHAASAFQCyAGQCiSBASLBgAek1wYErhABmVCQAMQACy5IMp3WDgAjBHDCHd1AA4vTy1YRg7AHcrSzguCQgweBgLFygeAjEzGQU-NUDQSFg4S2sMNDhWZDIKGnoVJhYOAG0eHGZDbBwoAF0ROAAfTsQkUXEpOSUVDKA&eslintrc=N4KABGBEBOCuA2BTAzpAXGUEKQAIBcBPABxQGNoBLY-AWhXkoDt8B6Jge1tiacTJTIAhtEK0ipWkOTJE0fJQ5N0UOdA7RI4MAF8QOoA&tsconfig=N4KABGBEDGD2C2AHAlgGwKYCcDyiAuysAdgM6QBcYoEEkJemy0eAcgK6qoDCAFutAGsylBm3TgwAXxCSgA&tokens=false

Repro Code

const el = document.querySelector('dialog') as HTMLElement

// ts infers `child` to be of type `Element` which is not the same as `HTMLElement`
const child = (el.querySelector('[autofocus]') || el) as HTMLElement

// `focus` doesn't exist on Element, which is why we cast in the first place
child.focus()

ESLint Config

module.exports = {
  "rules": {
    "@typescript-eslint/no-unnecessary-type-assertion": "error"
  }
}

tsconfig

{
  "compilerOptions": {
    "strictNullChecks": true
  }
}

Expected Result

I expect this not to trigger, since HTMLElement is not the same as the Element type ts would infer.

Actual Result

This rule triggers and automatically removes the type assertion, causing the following lines to start failing.

Additional Info

No response