Brotli comes with a dictionary by default, which is optimized for plaintext use cases. Once you give ZSTD a similar dictionary, its ratios are going to be simil

Brotli comes with a dictionary by default, which is optimized for plaintext use cases. Once you give ZSTD a similar dictionary, its ratios are going to be similar/better. I won't provide random links, because those can't replace testing on your own dataset.