Usage share of web browsers

The usage share of web browsers is the percentage (%) of viewers at a group of websites who use a particular web browser. For example, when it is said that Google Chrome has 64% usage share (May 2022), it means that all versions of Chrome (including the related Chromium) are used by 64 of every 100 visitors who visit a  set of websites.

Other websites
Chuck Upsdell's Browser Stats  lists web stats from many different stats sources and gives the approximate current usage share of the most popular layout engines.
W3Schools' Browser Statistics lists the web stats only from the W3 Schools site, which gives the approximate usage share of browsers among "people with an interest for web technologies."
Wikimedia's most recent squid report  lists web stats for Wikipedia and its sister projects.

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