This is how to create a custom call to the submit event of a form from another element.

VueFormSubmitWithRef.vue

<script setup>
import { ref } from 'vue'
// The variable name should match the ref's name in the template.
const newForm = ref(null)

const submitForm = () => {
  // We need the value to access the element.
  newForm.value.submit()
}
</script>

<template>
  <form ref="newForm">
    <a @click="submitForm">Someter</a>
  </form>
</template>