People usually think of RFCs as being the output of the IETF, and the IETF is the biggest contributor by far. Roughly half of the IETF's RFCs are standards or on what's called the "standards track" (most Internet standards are formally at the "Proposed Standard" rather than "Standard" level). The remainder have some other status such as "Informational".
However, there are also other entities that publish into the RFC Series, including the Internet Research Task Force (IRTF), and the Internet Architecture Board (IAB). In addition, there is what's called the Independent Stream, in which an appointed editor just determines what documents can be published. Importantly, this last category hasn't gone through the IETF consensus process: they're just something someone wanted to publish as an RFC and the Independent Series Editor agreed. GNU Name System falls into this category.
This is probably the time to thank and give credit to all reviewers and the ISE in particular, again :) https://www.rfc-editor.org/rfc/rfc9498.html#name-acknowledge...
> This document is not an Internet Standards Track specification; it is published for informational purposes. This is a contribution to the RFC Series, independently of any other RFC stream. The RFC Editor has chosen to publish this document at its discretion and makes no statement about its value for implementation or deployment. Documents approved for publication by the RFC Editor are not candidates for any level of Internet Standard; see Section 2 of RFC 7841.