Disagree. I would argue your example is hard to read compared to the equivalent in Vue, and it mixes business logic (computing the running total) with the rendering logic.

  <script setup>
    const items = [1,2,3,4,5,6]
    let runningTotal = 0

    const getRunningTotal = (item) => {
      runningTotal += item
      return runningTotal
    }
  </script>

  <template>
    <ul>
      <li v-for="item in items">
        Item {{item}}; running total {{ getRunningTotal(item) }}
      </li>
    </ul>
  </template>

No need for a computed property. Plus, getRunningTotal can be unit tested, or extracted to another file for reusability.