Perhaps you can reconcile the two, but I tend to trust Forbes research more than Newsweek. Forbes was able to track down at least 100 billionaires to see who they are supporting. Many billionaires play both sides or no sides, but where they do, Forbes found where they were actively supporting Harris. 81 out of the 100 were supporting Harris.

https://www.forbes.com/sites/dereksaul/2024/10/25/kamala-harris-has-more-billionaires-prominently-backing-her-than-trump-buffett-gates-weigh-in-updated/

If you choose to reconcile the two articles, I would love to see what you find.