Several CSS Shapes and CSS Values web platform tests have subtests that pass on Chrome but fail on Safari:

css/css-shapes-1/shape-outside/values/shape-margin-001.html
css/css-shapes-1/shape-outside/values/shape-outside-circle-004.html
css/css-shapes-1/shape-outside/values/shape-outside-circle-005.html
css/css-shapes-1/shape-outside/values/shape-outside-ellipse-004.html
css/css-shapes-1/shape-outside/values/shape-outside-ellipse-005.html
css/css-shapes-1/shape-outside/values/shape-outside-inset-003.html
css/css-shapes-1/shape-outside/values/shape-outside-polygon-004.html
css/css-shapes-1/shape-outside/values/shape-outside-shape-arguments-000.html
css/css-shapes-1/spec-examples/shape-outside-019.html
css/css-values-3/viewport-units-css2-001.html