Use a special settings cache that lives in cache.system to ensure that it is properly cleared on cache clear

config/packages/cache.yaml

@@ -23,3 +23,7 @@ framework:
 
             info_provider.cache:
                 adapter: cache.app
+
+            cache.settings:
+                adapter: cache.system
+                tags: true

config/packages/settings.yaml

@@ -3,6 +3,7 @@ jbtronics_settings:
 
   cache:
     default_cacheable: true
+    service: 'cache.settings'
 
   orm_storage:
     default_entity_class: App\Entity\SettingsEntry