Nuxt Ui Guideline: Overlays — Use v-model:open for overlay control. Description: Modal Slideover Drawer use v-model:open. Do: v-model:open for controlled state. Don't: Manual show/hide logic. Good Example: <UModal v-model:open="isOpen">. Bad Example: <UModal v-if="isOpen">. Severity: Medium. Docs: https://ui.nuxt.com/docs/components/modal.