If anything, Firefox on Linux is more likely to get it right, as it will typically be shipped with the font Twemoji Mozilla which includes this flag. I think th

If anything, Firefox on Linux is more likely to get it right, as it will typically be shipped with the font Twemoji Mozilla which includes this flag. I think they don’t ship that font on macOS or Windows, and it sounds like at least the default emoji font stack for Windows doesn’t support this flag.