If you change ten refs one after another, Vue does not render ten times, it renders once. The reactivity scheduler batches DOM updates through the microtask queue, and nextTick() is the tool for reliably waiting for exactly that moment instead of relying on accidental timing.
A Vue/Nuxt checklist for launch is more than a to-do list, it is the structured quality gate that prevents an app from going into production with slow Core Web Vitals, missing accessibility, or a fragile API integration.