imported/w3c/web-platform-tests/css/css-will-change/will-change-fixedpos-cb-001.html Is flaky image failure on BigSur E Wk1 release and Apple Silicon Wk1 Release History: https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-will-change%2Fwill-change-fixedpos-cb-001.html Image Diff: https://build.webkit.org/results/Apple-BigSur-Release-WK1-Tests/r278121%20(3041)/imported/w3c/web-platform-tests/css/css-will-change/will-change-fixedpos-cb-001-diff.png
<rdar://problem/78541185>