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=4.7.2&sourceType=module&code=KYDwDg9gTgLgBASwHY2FAZgQwMbDgGQQCMpMoBPOAbwCg44BtBALjgGcYpkBzAXVcIkylAD7tOPBrwDcNAL40aoSLEQo0WXAWKkKAcWBI0CbAB4AKgD5qdRi3FckfVubhjBu8gaNczV2Qo0QA&eslintrc=N4KABGBEBOCuA2BTAzpAXGUEKQAIBcBPABxQGNoBLY-AWhXkoDt8B6MgeyeUuX0Ra1mAE0QAPRMNocARgCtEZOn0JJ0URNGgdokcGAC+IA0A&tsconfig=N4KABGBEDGD2C2AHAlgGwKYCcDyiAuysAdgM6QBcYoEEkJemy0eAcgK6qoDCAFutAGsylBm3TgwAXxCSgA

Repro Code

export interface Library {
  [i: string]: Library | string[];
}

export interface LibraryGeneric<T> {
  [i: string]: T | LibraryGeneric<T>;
}

ESLint Config

module.exports = {
  "rules": {
    "@typescript-eslint/consistent-indexed-object-style": "error"
  }
}

tsconfig

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

Expected Result

interface LibraryGeneric can't be represented by a type for the same reason Library can't, per #4347. The rule shouldn't report on it.

Actual Result

The rule reports on LibraryGeneric.

Additional Info

Like #2687, but with generics.

Versions