I don't trust The Guardian, and it has a paywall. Here's a BBC piece :

https://www.bbc.com/news/health-65775159

It's about the Galleri Test, which looks good enough to be useful. It's a DNA fragment analysis of a blood sample with lots of false negatives, but few false positives. This study was of people already suspected to have cancer, but the test helped determine what kind and where it was. cool