According to Orthodox Judaism, which parts of the Talmud are from G-d (and thus perfect and incontrovertible)?

I’m not super well-versed in Talmud, hence the question.

I’m aware that certain parts of the Talmud are considered “l’moshe m’sinai” or however you call it (given to Moses at Sinai), but which parts of the Talmud are directly from G-d, and which parts are man-made?

EDIT: Follow-up question: are baraitot considered to be “given to Moses at Sinai”?