When you visit news.zello.com, you're greeted with a 404 error instead of articles. That alone makes it hard to evaluate. For a news site, even a small one, you'd expect some content, a way to contact the team, and maybe a social media presence. Here, there's none of that.
The domain is a subdomain of zello.com, a known company behind the push-to-talk app. That might suggest the site is official, but the subdomain itself is not operational and lacks any identifying information like an about page or favicon. Without evidence that it's actually run by Zello, it's safer to treat it as unverified.
If this site ever starts working, check for an about page, contact information, and a publishing history. For now, the verdict is clear: use caution until there's something to review. So if you're asking "is news.zello.com a scam", the answer is that we can't confirm it's legitimate, but we can say it's currently not functioning.