Apple has released M1 Chip (ARM) equipped computers, which bring significant architecture changes (known as Apple Silicon). Among them, these devices will run (at minimum) macOS11  Big Sur, and handle tasks differently than previous Apple systems.

Those hardware and OS changes also modify how software works on these devices, which requires developers to transition their apps to “Universal versions”. 

Sophos Home can run 100% natively on M1 chips, please see:  Mac 10.3.1 release notes 

Steps related to how to install Sophos Home on M1 devices
Support for macOS 11 - Big Sur

Sophos Home - macOS Monterey Support 

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• Webcam protection will display “Camera Active”, even when no camera actions are being performed if running macOS 11 Big Sur.
• Webcam protection will not trigger an alert if using macOS 12, Monterey. 
• In some cases, users may see a message stating  “Using Significant Energy: "Sophos Scan"” this could occur during scans.