That's a Washington Post article. Musk isn't Trump, so WaPo could use truthful descriptions like "corrupt", "conflict of interest" and "lies" when reporting on Musk's activities.
So the very first paragraph of the article has to correct itself. The title says he's getting benefits. The first paragraph says he's getting benefits. Then the first paragraph corrects itself by saying: "or is now in a decidedly better position to benefit."
So he hasn't received benefits, but he might, potentially, because some democrats have left and they've been replaced by republicans, potentially, whom you can assume, will be more sympathetic to him.
The exact quote: "President Trump has been in office less than a month, and Elon Musk’s vast business empire is already benefiting — or is now in a decidedly better position to benefit." -- the article and title seem to be trying to get you to think one thing without any proof yet.