Modern frontend teams can ship a surprising amount of change in a week.
A component library gets updated. An AI coding assistant rewrites a form. A new analytics tag appears. React Suspense changes when content becomes visible. A product manager asks for dark mode. A support widget is added. A table becomes virtualized because the old one could not handle enough rows.
None of these changes sounds dramatic on its own.
Together, they create a frontend that is constantly moving.
The problem is that many browser test suites were designed for a simpler application. They assume that elements appear in a predictable order, text remains stable, browser state starts clean, and the difference between a passing and failing test is easy to explain.
