Your comments are so highly abbreviated as to be nearly impossible to understand. I suspect that unintelligibility is leading to it being heavily downvoted.
The addition of the comment about LLMs isn't really helping.
His comments are also outdated. Browser binding with a separate nonce is standard practice by big identity providers, redirect uris are typically strictly validated, implicit flow without pkce is being phased out, and most browsers protect against a lot of would-be csrf attacks with strict samesite cookie headers.
The addition of the comment about LLMs isn't really helping.