In a September 17th update, it was was announced that Firestore now supports "Not Equal" queries.
-https://firebase.google.com/support/release-notes/js#version_7210_-_september_17_2020

The latest cloud_firestore Flutter plugin (0.14.1+3) doesn't look like it supports this yet, I wasn't able to spot its addition in the version log and the API calls aren't available. Is there any information on

Google suggests enabling gzip compression before transferring files over the network:

In order to receive a gzip-encoded response you must do two things: Set an Accept-Encoding header, and modify your user agent to contain the string gzip. Here is an example of properly formed HTTP headers for enabling gzip compression:

Acc