I am the assigned ART directorate reviewer for this document. These comments were written primarily for the benefit of the ART area directors.  Document editors and WG chairs should treat these comments just like any other last call comments.

The document describes the technique called DNS Query Name Minimisation, which was originally defined in RFC 7816, and since then has been widely using in the Internet to improve privacy. The goal of this document is to replace RFC 7816 (which has an Experimental status) with a Standards Track RFC, adding some clarifications based on the  experience of using this technique in the Internet.

The DNS Query Name Minimisation doesn't change DNS protocol, it only defines the way the resolver constructs DNS queries, so the interoperability is preserved.

The document is well written and easy to read.

Nit: RFC 7626, referenced in the document, has been just obsoleted by RFC 9076.