quizStore.js

import { reactive } from "vue";

export let state = reactive({
  name: 'My Second Quiz',
  questions: []
});

SomeComponent.vue

<template>
  <div>
    <h5>{{ state.name }}</h5>
  </div>
</template>

<script setup>
import {state} from "@/stores/quizStore";
</script>