I do not use a CDN but I am pleased with brotli numbers compared to gzip. If using Alpine Linux no need to compile as they have nginx-mod-http-brotli and I use brotli_static always as I am curious how the majority of bots handle that.

    3.4K i.html
    1.2K i.html.gz #   gzip -9fvnc
     904 i.html.br # brotli --best -fvnc

    587 _.css
    331 _.css.gz
    271 _.css.br