For an unpaid version of this news, you can look at an earlier publication: https://www.wired.com/story/china-stakes-claim-quantum-supremacy/

The Chinese team posted their research in Science Journal:

https://science.sciencemag.org/content/early/2020/12/02/science.abe8770

Very technical as it explains the research which had a different approach from Google/IBM as they are using photons while Google/IBM superconducting materials for chips.

Neither quantum computer breakthrough coming from Google, China, or IBM has an application yet or can be used for anything. It is in embryonic research level, can take up to 20 years to have something that can be used.