app/components/Layout/Header/HomeBtn.vue

<template>
  <div>
    <v-btn
        ref="btn"
        icon="fas fa-home"
        size="small"
        :href="homeUrl"
        class="ml-2 text-ot-white"
    />
    <v-tooltip :activator="btn" :text="$t('welcome')" location="bottom" />
  </div>
</template>

<script setup lang="ts">
  import {useRuntimeConfig} from "#app";
  import {ref} from "@vue/reactivity";

  const runtimeConfig = useRuntimeConfig()
  const homeUrl = runtimeConfig.baseUrlAdminLegacy

  const btn = ref(null);
</script>

<style scoped>

</style>