Most of the tools have been around for quite some time (on the web tech timescale, at least), and they've each evolved and improved as they've been battle-teste

Most of the tools have been around for quite some time (on the web tech timescale, at least), and they've each evolved and improved as they've been battle-tested. For example, React is pretty state-of-the-art as it has changed (improved) significantly over the years, while still being used in production everywhere.