On Big Sur beta 11.0.1, attempting to print on my HP OfficeJet L7580 gave me error messages indicating that the macOS thought that the printer driver was malware. So I attempted to uninstall and reinstall the driver. But the driver installer won't run on Big Sur. Luckily I had a different partition that I could use to boot into Catalina. So I reinstalled the HP driver on Catalina, then went back to Big Sur and used Migration Assistant to copy over the printer driver. Now I'm back in business.

As of Xcode 12.2 beta and Big Sur beta 8, the 11.0 test is working again.