The Uncommitted movement announced it wouldn’t be endorsing Kamala Harris for president over her failure to push for a new U.S. policy on the Gaza war.
"Uncommitted said that while the group would not endorse Harris, it continues to oppose a Donald Trump presidency and is not recommending a third-party vote in the presidential election for fear that it could inadvertently boost Trump’s advantage in the Electoral College. The group urged uncommitted voters to cast anti-Trump votes up and down the ballot. "
There’s a pretty big omission in this article compared to other reporting: the fact that the uncommitted movement explicitly recommended not helping trump by not voting or voting third party.
In other words, they did endorse Harris. They just phrased it differently.