Yes. It's used heavily in the publishing and standards industries that store the documents in JATS and other XML-based formats.

Because browsers only support XSLT 1.0 the transform to HTML is typically done server side to take advantage of XSLT 2.0 and 3.0 features.

It's also used by the US government:

1. https://www.govinfo.gov/bulkdata/BILLS

2. https://www.govinfo.gov/bulkdata/FR/resources