"OpenAI found this in February reported it as unauthenticated remote code execution that works in both directions, so a malicious client can take over an unpatched server and a malicious server can take over an unpatched client that accepts compressed responses."
Every user is different
For me I'm a text-only user not interested in graphics
I do not use a so-called "modern" browser to make HTTP requests
I don't request brotli-compressed content/resources^1
Normally I don't send an Accept-Encoding header
Almost always servers to which I connect^2 will return uncompressed text, which is what I want. No Accept-Encoding header needed
Occasionally servers will send gzip-compressed text by default and will ignore "Accept-Encoding: identity"
However the popular so-called "modern" browsers will send an Accept-Encoding header whose value includes brotli (br) by default
Unsuspecting www users are consequently opted in to Google's brotli experiment. Me, I opt out
1. I use a text-only browser (1.3MB static binary) to read HTML. I compile it without brotli support
2. Other users may connect to different servers. Preferences vary from user to user