> Unicode has variant selectors which can deal with region variants (e.g. https://imgur.com/a/syMcWNO https://imgur.com/a/syMcWNO) to deal with the issue. They

> Unicode has variant selectors which can deal with region variants (e.g. https://imgur.com/a/syMcWNO https://imgur.com/a/syMcWNO) to deal with the issue. They're officially deprecated and cause issues with breaking search etc.. So they're still below feature parity with using a traditional encoding. Traditional encoding support is also easier to test since documents with traditional encodings are more widespread and exist for many world languages, not just Japanese.