AppWindow
Before you start, see Install; for open, see Modal.
AppWindow renders s-app-window, which the @shopify/app-bridge-types docs describe as "a fullscreen modal window in the Shopify admin". src is required: "the URL is loaded in an iframe when the window opens".
vue
<script setup lang="ts">
import { ref } from 'vue'
import { AppWindow } from 'polaris-vue-elements/app-bridge'
const open = ref(false)
</script>
<template>
<button @click="open = true">Edit in bulk</button>
<AppWindow id="bulk-editor" src="/bulk-editor" v-model:open="open" />
</template>open, v-model:open, show/hide and hiding on unmount work as for Modal. It has no slot.