How do you test accessibility (a11y) effectively — tools and approach that actually work?

We want to add accessibility testing to our suite. We have a React app with ~60 pages. Current thinking: - **axe-core + Playwright** — run axe on every page as part of E2E suite, fail on critical/serious violations - **Manual testing with screen readers** — for key flows (checkout, onboarding) - **Storybook a11y addon** — for component-level checks Questions: 1. Does automated axe testing actually catch meaningful a11y issues, or mostly technical violations? 2. How do you handle axe rules that are too noisy (lots of false positives on your specific design system)? 3. Is there a smarter integration than "run axe on every page visit"?