No, I'm talking about Google Analytics which is the topic of the article and parent comment.

Heat maps are great too but Google Analytics is still used as the foundation for figuring out which types of users are clicking and not clicking on what, both in isolation and as part of a pathway between elements/pages/etc.

Plug: If you're interested I have built a tool to solve this need of having both qualitative data (heatmaps, recordings) and quantitative data (stats, segments), plus it's self-hosted for highest privacy: https://usertrack.net