I think Clojure has benefited from matching being kept out of the built-in stdlib. https://github.com/clojure/core.match is a plug-in and as a result we've had lots of cool data traversal/matching DSLs come around and evolved user communities with time such as Meander and Datascript not to mention the parsing applications of the schema systems (spec & malli).
I assume you mean something like clojure.core.match https://github.com/clojure/core.match ?
It is available, but not used that often.
Why not just use core.match? https://github.com/clojure/core.match