iCloud URL restriction in other browsers for Mac and iPhone

New Contributor II

Is there a way to block iCloud URL completely on a Mac or iPhone browsers. I know you can do it on the native Safari browser using Parental control on Mac and Content filter on iPhone. But our organisation has a strict policy to restrict iCloud access. We tried restricting the iCloud via configuration profile. That way we can still access the iCloud website via any browser like chrome, Firefox. The devices are all company owned. Anyone has a workaround Kindly share ASAP