How to refresh background tabs on specified delay on Chrome/Chromium?

I’ve been working on a rotating dashboard to load some pages of our websites so we can get an easy look at how the sites look, and quickly notice any errors that come from deployments to live.

All the auto refresh extensions I can find reload the active tab, and the Revolver extension that I use to rotate through tabs does the same. I’d like to refresh tabs in the background so that is less distracting to the team whilst keeping up frequent refreshes so we are seeing a more recent view.

Thanks in advance for any responses, and for your time reading this.