The issue is broader than that. The article's addendum points out that both Bootstrap and GitHub removed system-ui from their font stack, and another comment in this subthread mentions that Bluesky has done the same. In each case there's a link to comments and/or a PR which gives reasons.
Bootstrap later added it back, but in the PR discussion it was pointed out that this is still an issue on Chinese and Korean Windows, at least.
> Meh, for my personal website, I'll keep using system-ui.
Well sure, but in that case you could also use your own personal language that no-one else knows.
Bootstrap later added it back, but in the PR discussion it was pointed out that this is still an issue on Chinese and Korean Windows, at least.
> Meh, for my personal website, I'll keep using system-ui.
Well sure, but in that case you could also use your own personal language that no-one else knows.