I doubt anyone is alleging Elon Musk has control over Google's search. Google Trends suggests the same kind of interest change at exactly the same point in mid-July: https://trends.google.com/trends/explore?date=2024-01-01%202...
I am not surprised that Trump and Republicans immediately garnered more attention as a consequence, rightfully or otherwise.
[1]: https://en.wikipedia.org/wiki/Attempted_assassination_of_Don...