You can choose the type of device on which you want to monitor your website’s performance using Google Lighthouse. This allows you to test on both Desktop and Mobile.
Device throttling involves simulating various network conditions and device capabilities to mimic real-world user experiences. This includes settings for network speed (e.g. 3G and 4G,), CPU slowdown, and more. Configuring device throttling helps you understand how your website performs under different conditions, such as slow network connections or less powerful devices.
This is crucial for optimizing your website for a wide range of users, who might be trying to use your website on different devices or under different network conditions (you can view a map of the UK’s data coverage here). You can select from the preset options or enter custom settings.
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https://commonslibrary.parliament.uk/research-briefings/sn07069/