A few years ago I did some measurements of popular projects (Wikipedia, WordPress, default React, jQuery, few things like that) comparing minify, minify+gzip, and just gzip, and found found that most minification beyond "removing comments" gives very little benefit even for poor 2G connections.
Especially things like removing as much whitespace as possible or replacing true/false with !0/!1 just don't really save a lot of space. The only two I found to make a significant difference were removing comments, and shortening identifiers (and usually with most of the savings being in "removing comments", depending on the amount of comments and code style).
Especially things like removing as much whitespace as possible or replacing true/false with !0/!1 just don't really save a lot of space. The only two I found to make a significant difference were removing comments, and shortening identifiers (and usually with most of the savings being in "removing comments", depending on the amount of comments and code style).