That is a technicality. You cannot convict the President of anything (he controls enforcement of the laws, has pardon power, etc.). The senate would need to impeach him, remove him from office (which would never happen due to Republican opposition), then convict him as a private citizen (which would never happen due to political norms).
He hasn’t been president for a year already. Yet no one even tried to bring him to court because of anything; all I see are some keyboard warriors who don’t get how the presumption of innocence works.
He is not guilty just because some random comment says it. He is only guilty when a court says so.
That is false. The President enjoys immunity for many actions taken as President, but not all actions can be considered official, and not all actions are immunized.
State charges, especially committed before taking federal office, are certainly possible.
