The hush money payments were before the election so they were still felonies. It’s possible Trump wouldn’t have bothered hiding them like he did if he lost, but in any case there wouldn’t have been the appetite to prosecute him.
As for the coup, he absolutely would have tried it, definitely through filing lawsuits, and probably up to the same fake electors scheme and the riot, but it’s debatable how far he would’ve gotten. Definitely not as far as he did in reality, though.