slander

The Talmud is also a collection of laws and recommendations.

The reason why the Talmud is perhaps not disputed is that the entire text is full of disputes over almost every law and every argument, and what is believed can almost always be arranged somehow with the sea of text. I didn't understand how one can receive authority from the dispute? Unless the rabbi meant only where the Talmud writes 'and halachta', but in most places the halachah was discontinued at a later period.

The question here is actually interesting because the Rabbi wrote a book that ruled the halachah and was accepted by the general public, hence the public has given him authority for several generations even if today someone wants to dispute some other laws.

I have argued this extensively in the past. The Talmud is not disputed because it was accepted. The fact that it is laden with controversy and that many opinions can be included in it is true, and for good reason. And yet this is the framework of the discussion, and if you have a problem with the Talmud, your opinion is rejected. Evidence for every opinion is provided by the Talmud. Therefore, there is certainly significance in accepting the Talmud as a framework despite the controversy.
Things that are not halacha that were included in the Talmud really have no authority.
With the Chacham, he cannot decide that something that is not halacha is halacha. And if he did decide so, it is a decision that has no validity. And as mentioned, he was also not accepted as an absolute formal authority.

Thanks for clarifying the authoritative framework.

Even the Talmudic sages could not decide that something that was not halacha was halacha. But after the Talmud was signed and accepted as authority, it was accepted and became halacha. Am I wrong?

The Talmud was given the authority of the Sanhedrin, and they can establish regulations (but not arbitrarily determine that something is halakha if it is not. This is an issue of misunderstanding the mitzvah of listening to the words of the sages). This does not exist in the Ch’ach.