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=5.0.2&sourceType=module&code=PTAEGEHsCdoUwMYBcA2BPUAzFBDA5nnACYCwAUAArSQC2AlgM5wB08AVokgBQCUzSACzgA7Lr1ABeAHygA3qAC+PciFAAVAY1BbBcUAxw09gusLzbhoAFIBlZqACSSfUjooU2hqByWArsIEfIhRiUHZOOkhhZnIqWkYWcORefiFRcWk5RQAaUH8iOExTYh4gA&eslintrc=N4KABGBEBOCuA2BTAzpAXGUEKQAIBcBPABxQGNoBLY-AWhXkoDt8B6Jge1oDN4OBDfMwDmtYtA4BbSshTooiaBOiRwYAL4h1QA&tsconfig=N4KABGBEDGD2C2AHAlgGwKYCcDyiAuysAdgM6QBcYoEEkJemy0eAcgK6qoDCAFutAGsylBm3TgwAXxCSgA

Repro Code

Promise.reject().then(() => { }, undefined)

ESLint Config

module.exports = {
  parser: "@typescript-eslint/parser",
  rules: {
    "@typescript-eslint/no-floating-promises": ["error"],
  },
};

tsconfig

No response

Expected Result

I expect that .then(f, undefined) should be flagged as an error the same as .then(f)

Actual Result

No error

Additional Info

No response