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 havesearched for related issues and found none that matched my issue.
• I haveread the FAQ and my problem is not listed.

Playground Link

https://typescript-eslint.io/play/#ts=5.8.2&fileType=.tsx&code=CYUwxgNghgTiAEYD2A7AzgF3hkmBc8AgjDFAJ4A8A3vFAPwGYwCWKA5vAL4B8A3AFD8A9EPgAlEAAckMHMHgAjMvAAqZSSADKYFpKxQ02ABYIkCgFbgszQ9LRpmCiMoDkAVxSgAZqxDAX-DiYANoADAC6AHRQAvzMXvAAFEEYYeF00QCU8FT88PAi8ADyesyoUBCIRlCsrBw2KC5YKOC4aLDKJnB52LipEdG8%2Bfn8nILxSSlpGVDZufmFmkZIbhDyCghw0rJ%2Bim5YwEi4jRh0PVMRMwJjQA&eslintrc=N4KABGBEBOCuA2BTAzpAXGUEKQAIBcBPABxQGNoBLY-AWhXkoDt8B6Jge1tiacTJTIAhtEK0yHJgBNK%2BSpPRRE0aB2iRwYAL4gtQA&tsconfig=N4KABGBEDGD2C2AHAlgGwKYCcDyiAuysAdgM6QBcYoEEkJemy0eAcgK6qoDCAFutAGsylBm3QAacDUhFYAVSLQ%2Bg9ABMAkkVXoAHmoCC0aOhLCwo9FIC%2BIK0A&tokens=false

Repro Code

declareconsttest:Array<{a?:string}>;// Reported by TypeScript as the object is possibly 'undefined'test[0].a;if(test[0]?.a){// Optional chaining isn't necessary heretest[0].a;}if(test[0]?.a){// Should be reported but doesn't?test[0]?.a;}

ESLint Config

module.exports={parser:"@typescript-eslint/parser",rules:{"@typescript-eslint/no-unnecessary-condition":"error",},};

tsconfig

{"compilerOptions": {"strictNullChecks":true,"noUncheckedIndexedAccess":true  }}

Expected Result

I expected the rule to report on unnecessary optional array index access whennoUncheckedIndexedAccess is enabled.

Actual Result

The rule seems to fails to catch these unnecessary optional array index access cases whennoUncheckedIndexedAccess is enabled.

Additional Info

No response