multiselect-tags.vue

const multiValue = ref()
const groups = reactive([])

groups = datas.roles.map((item) => ({
                value: item.name,
                label: item.name,
            }))

<p>{{ multiValue }}</p>
                                <multiselect
                                    v-model="multiValue"
                                    mode="tags"
                                    label="label"
                                    :searchable="true"
                                    :options="groups"
                                    option-label="label"
                                    value-prop="label"
                                    :track-by="'label'"
                                />