diff --git a/src/components/font_control/font_control.js b/src/components/font_control/font_control.js
index d1f3390cc..d7c5aa225 100644
--- a/src/components/font_control/font_control.js
+++ b/src/components/font_control/font_control.js
@@ -21,14 +21,7 @@ export default {
     Popover,
     LocalSettingIndicator,
   },
-  props: [
-    'name',
-    'label',
-    'modelValue',
-    'fallback',
-    'options',
-    'no-inherit',
-  ],
+  props: ['name', 'label', 'modelValue', 'fallback', 'options', 'no-inherit'],
   mounted() {
     useInterfaceStore().queryLocalFonts()
   },
diff --git a/src/modules/default_config_state.js b/src/modules/default_config_state.js
index bc2465e70..a391e9b21 100644
--- a/src/modules/default_config_state.js
+++ b/src/modules/default_config_state.js
@@ -191,9 +191,12 @@ export const makeUndefined = (c) =>
 export const defaultState = {
   // Set these to undefined so it does not interfere with default settings check
   ...makeUndefined(instanceDefaultConfig),
+  ...makeUndefined(defaultConfigLocal),
+  // If there are any configurations that does not make sense to
+  // have instance-wide default, put it here and explain why.
 
-  // Special processing
-  // Theme  stuff
+  // # Special processing
+  // ## Theme  stuff
   theme: undefined, // Very old theme store, stores preset name, still in use
 
   // V1
@@ -220,15 +223,4 @@ export const defaultState = {
       monospace: undefined,
     },
   },
-
-  // Special handling: These fields are not of a primitive type, and
-  // might cause problems with current code because it specifically checks
-  // them in state.config (not getters.mergedConfig).
-
-  // Specifically, muteWords is now deprecated in favour of a server-side configuration.
-  muteWords: [],
-  highlight: {},
-
-  // If there are any configurations that does not make sense to
-  // have instance-wide default, put it here and explain why.
 }
diff --git a/src/modules/old_default_config_state.js b/src/modules/old_default_config_state.js
index 6e0e730de..dc15e1c24 100644
--- a/src/modules/old_default_config_state.js
+++ b/src/modules/old_default_config_state.js
@@ -182,6 +182,4 @@ export const defaultConfigLocal = {
   mentionLinkDisplay: 'short',
   imageCompression: true,
   alwaysUseJpeg: false,
-  imageCompression: true,
-  alwaysUseJpeg: false,
 }
diff --git a/src/stores/local_config.js b/src/stores/local_config.js
index 117be393d..73ea1d7d4 100644
--- a/src/stores/local_config.js
+++ b/src/stores/local_config.js
@@ -32,7 +32,7 @@ export const useLocalConfigStore = defineStore('local_config', {
     unset({ path, value }) {
       set(this.prefsStorage, path, undefined)
     },
-    clearSyncConfig() {
+    clearLocalConfig() {
       const blankState = { ...cloneDeep(defaultState) }
       Object.keys(this).forEach((k) => {
         this.prefsStorage[k] = blankState[k]
diff --git a/src/stores/sync_config.js b/src/stores/sync_config.js
index 51327c389..b740e1bec 100644
--- a/src/stores/sync_config.js
+++ b/src/stores/sync_config.js
@@ -21,7 +21,11 @@ import { useInstanceStore } from 'src/stores/instance.js'
 import { useLocalConfigStore } from 'src/stores/local_config.js'
 
 import { storage } from 'src/lib/storage.js'
-import { defaultState as configDefaultState, makeUndefined, defaultConfigLocal } from 'src/modules/default_config_state.js'
+import {
+  defaultState as configDefaultState,
+  defaultConfigLocal,
+  instanceDefaultConfig,
+} from 'src/modules/default_config_state.js'
 import { defaultConfigSync } from 'src/modules/old_default_config_state.js'
 
 export const VERSION = 2
@@ -50,7 +54,8 @@ export const defaultState = {
       dontShowUpdateNotifs: false,
       collapseNav: false,
       muteFilters: {},
-      ...makeUndefined(configDefaultState),
+
+      ...configDefaultState,
     },
     collections: {
       pinnedStatusActions: ['reply', 'retweet', 'favorite', 'emoji'],
@@ -616,7 +621,7 @@ export const useSyncConfigStore = defineStore('sync_config', {
       let dirty = false
 
       console.debug('Migrating from old config')
-      const vuexState = await storage.getItem('vuex-lz') ?? {}
+      const vuexState = (await storage.getItem('vuex-lz')) ?? {}
       vuexState.config = vuexState.config ?? {}
 
       const migratedEntries = new Set(vuexState.config._syncMigration ?? [])
@@ -631,7 +636,7 @@ export const useSyncConfigStore = defineStore('sync_config', {
         const different = !isEqual(oldValue, defaultValue)
 
         if (present && !migrated && different) {
-          console.debug(`Migrating config ${key}: ${oldValue}`,)
+          console.debug(`Migrating config ${key}: ${oldValue}`)
           this.setPreference({ path: `simple.${key}`, oldValue })
           migratedEntries.add(key)
           needUpload = true
@@ -721,8 +726,15 @@ export const useSyncConfigStore = defineStore('sync_config', {
         Object.entries(state.prefsStorage.simple).map(([k, value]) => [
           k,
           LOCAL_ONLY_KEYS.has(k)
-            ? tempPrefs[k] ?? localPrefs[k] ?? instancePrefs[k]
-            : tempPrefs[k] ?? localPrefs[k] ?? value ?? instancePrefs[k],
+            ? (tempPrefs[k] ??
+              localPrefs[k] ??
+              instancePrefs[k] ??
+              defaultConfigLocal[k])
+            : (tempPrefs[k] ??
+              localPrefs[k] ??
+              value ??
+              instancePrefs[k] ??
+              instanceDefaultConfig[k]),
         ]),
       )
       return result
diff --git a/src/stores/user_highlight.js b/src/stores/user_highlight.js
index 6a3badd01..ae2bd4d4c 100644
--- a/src/stores/user_highlight.js
+++ b/src/stores/user_highlight.js
@@ -278,7 +278,7 @@ export const useUserHighlightStore = defineStore('user_highlight', {
       const userNew = userData.created_at > NEW_USER_DATE
       let dirty = false
 
-      const vuexState = await storage.getItem('vuex-lz') ?? {}
+      const vuexState = (await storage.getItem('vuex-lz')) ?? {}
       vuexState.config = vuexState.config ?? {}
       const highlight = vuexState.config.highlight ?? {}