Except that we really don’t know what those would have been
when people say “the teachings Jesus actually preached”, they usually mean “the canonical teachings from the bible”.
Which is a pet peeve.
Also, given the highly contradictory nature of the Bible, that’s not saying much.
He also told people to sell their cloaks and go buy swords canonically at the last supper in Luke, explicitly going back on things he had allegedly said earlier.