I believe Politico privately considers "No Labels" to be a spoiler operation designed to put Trump back in the White House. But like other willfully blind journalism organizations, it treats the group as "centrist" with honest motivations.
https://www.politico.com/news/2023/08/30/trump-donor-no-labels-adviser-00113395
It's likely that some supporters do honestly believe they're helping to improve politics. But they are the Jill Stein voters of 2024 and should be called out as such.