diff --git a/packages/frontend/src/components/MkNoteHeader.vue b/packages/frontend/src/components/MkNoteHeader.vue
index be5829d92f..7137c5fbf8 100644
--- a/packages/frontend/src/components/MkNoteHeader.vue
+++ b/packages/frontend/src/components/MkNoteHeader.vue
@@ -5,14 +5,18 @@ SPDX-License-Identifier: AGPL-3.0-only
 
 <template>
 <header :class="$style.root">
-	<div v-if="mock" :class="$style.name">
-		<MkUserName :user="note.user"/>
-	</div>
-	<MkA v-else v-user-preview="note.user.id" :class="$style.name" :to="userPage(note.user)">
-		<MkUserName :user="note.user"/>
-	</MkA>
-	<div v-if="note.user.isBot" :class="$style.isBot">bot</div>
-	<div :class="$style.username"><MkAcct :user="note.user"/></div>
+	<MkCondensedLine :minScale="0" style="min-width: 0; flex: 1;">
+		<div style="display: flex; white-space: nowrap; align-items: baseline;">
+			<div v-if="mock" :class="$style.name">
+				<MkUserName :user="note.user"/>
+			</div>
+			<MkA v-else v-user-preview="note.user.id" :class="$style.name" :to="userPage(note.user)">
+				<MkUserName :user="note.user"/>
+			</MkA>
+			<div v-if="note.user.isBot" :class="$style.isBot">bot</div>
+			<div :class="$style.username"><MkAcct :user="note.user"/></div>
+		</div>
+	</MkCondensedLine>
 	<div v-if="note.user.badgeRoles" :class="$style.badgeRoles">
 		<img v-for="(role, i) in note.user.badgeRoles" :key="i" v-tooltip="role.name" :class="$style.badgeRole" :src="role.iconUrl!"/>
 	</div>
diff --git a/packages/frontend/src/components/global/MkAcct.vue b/packages/frontend/src/components/global/MkAcct.vue
index 8a03f7846e..9a1ac3aca2 100644
--- a/packages/frontend/src/components/global/MkAcct.vue
+++ b/packages/frontend/src/components/global/MkAcct.vue
@@ -4,11 +4,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 -->
 
 <template>
-<MkCondensedLine v-if="defaultStore.state.enableCondensedLineForAcct" :minScale="2 / 3">
-	<span>@{{ user.username }}</span>
-	<span v-if="user.host || detail || defaultStore.state.showFullAcct" style="opacity: 0.5;">@{{ user.host || host }}</span>
-</MkCondensedLine>
-<span v-else>
+<span>
 	<span>@{{ user.username }}</span>
 	<span v-if="user.host || detail || defaultStore.state.showFullAcct" style="opacity: 0.5;">@{{ user.host || host }}</span>
 </span>
diff --git a/packages/frontend/src/pages/settings/other.vue b/packages/frontend/src/pages/settings/other.vue
index 0f7609c83e..ab48703824 100644
--- a/packages/frontend/src/pages/settings/other.vue
+++ b/packages/frontend/src/pages/settings/other.vue
@@ -51,9 +51,6 @@ SPDX-License-Identifier: AGPL-3.0-only
 				<template #label>{{ i18n.ts.experimentalFeatures }}</template>
 
 				<div class="_gaps_m">
-					<MkSwitch v-model="enableCondensedLineForAcct">
-						<template #label>Enable condensed line for acct</template>
-					</MkSwitch>
 				</div>
 			</MkFolder>
 
@@ -104,7 +101,6 @@ import FormSection from '@/components/form/section.vue';
 const $i = signinRequired();
 
 const reportError = computed(defaultStore.makeGetterSetter('reportError'));
-const enableCondensedLineForAcct = computed(defaultStore.makeGetterSetter('enableCondensedLineForAcct'));
 const devMode = computed(defaultStore.makeGetterSetter('devMode'));
 const defaultWithReplies = computed(defaultStore.makeGetterSetter('defaultWithReplies'));
 
@@ -142,12 +138,6 @@ async function updateRepliesAll(withReplies: boolean) {
 	misskeyApi('following/update-all', { withReplies });
 }
 
-watch([
-	enableCondensedLineForAcct,
-], async () => {
-	await reloadAsk({ reason: i18n.ts.reloadToApplySetting, unison: true });
-});
-
 const headerActions = computed(() => []);
 
 const headerTabs = computed(() => []);
diff --git a/packages/frontend/src/pages/settings/preferences-backups.vue b/packages/frontend/src/pages/settings/preferences-backups.vue
index 8b905885ee..80d04ec686 100644
--- a/packages/frontend/src/pages/settings/preferences-backups.vue
+++ b/packages/frontend/src/pages/settings/preferences-backups.vue
@@ -103,7 +103,6 @@ const defaultStoreSaveKeys: (keyof typeof defaultStore['state'])[] = [
 	'mediaListWithOneImageAppearance',
 	'notificationPosition',
 	'notificationStackAxis',
-	'enableCondensedLineForAcct',
 	'keepScreenOn',
 	'defaultWithReplies',
 	'disableStreamingTimeline',
diff --git a/packages/frontend/src/store.ts b/packages/frontend/src/store.ts
index c8b7aa013f..fd5cfcc196 100644
--- a/packages/frontend/src/store.ts
+++ b/packages/frontend/src/store.ts
@@ -392,10 +392,6 @@ export const defaultStore = markRaw(new Storage('base', {
 		where: 'device',
 		default: 'horizontal' as 'vertical' | 'horizontal',
 	},
-	enableCondensedLineForAcct: {
-		where: 'device',
-		default: false,
-	},
 	additionalUnicodeEmojiIndexes: {
 		where: 'device',
 		default: {} as Record<string, Record<string, string[]>>,