How to measure the popularity of FOSS projects though? Number of downloads? Number of stars on GH? Number of content on social medias? The absolute value is m

How to measure the popularity of FOSS projects though? Number of downloads? Number of stars on GH? Number of content on social medias? The absolute value is meaningless in itself, but there's a big difference between a library that is downloaded a thousand or millions of times each week. That's the idea. Meanwhile for-profit projects have actual customers or revenues to demonstrate popularity.