16-year-old Safari bug to ignore `text-transform` on text copy:
https://bugs.webkit.org/show_bug.cgi?id=43202
Today, there’s a PR to address it:
https://github.com/WebKit/WebKit/pull/60830
Sadly, both reviewers are resisting it based on uncited claims that “End-user doesn’t care” and it’s “purely user hostile.”