I noticed that the view transitions on my website stopped working in Safari. The reason was that I moved and nested the lines for activating them inside :root. Chrome still applies them if the declaration is nested, but Safari doesn‘t.

/* nesting breaks view transitions in Webkit */
:root {
  @view-transition {
    navigation: auto;
  }
}

/* works in Webkit and Chromium */
@view-transition {
  navigation: auto;
}