'How is Google Meet able to show CPU usage?

I noticed this today in my Chrome.

Google Meet CPU Usage chart

Google Meet is showing a chart of CPU usage in their "Troubleshooting" panel. I'm wondering if there's an existing API for this or is it a clever trick I'm not aware of.



Solution 1:[1]

Most probably, they are using Chrome specific API since this will not work on other browsers. The closest thing that I've found is https://developer.chrome.com/extensions/system_cpu#method-getInfo

Below is a screenshot from Firefox stating that this will work only on Chrome.

Snapshot from Firefox

Sources

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Source: Stack Overflow

Solution Source
Solution 1