Google Analytics 4
Update the https://docs.plasmo.com/quickstarts/with-google-analytics to be using https://developer.chrome.com/docs/extensions/how-to/integrate/google-analytics-4#toc-requirements
Plasmo Docs
Guide on how to use Google Analytics with a Manifest Version 3 browser extension

Chrome for Developers
Step-by-step instructions on how to track usage of your Extension with Google Analytics 4.