<offtopic probably>Haven't read the article but nowadays there's no reason to use either GZIP, or bzip2 when ZSTD is available. It's just so much better than both, I've no idea why people haven't replaced everything with ZSTD, except for XZ/7-Zip which can provide much high compression ratios at the cost of very slow compression and insane RAM requirements (3840MB dictionary with at least two threads).</offtopic probably>