is this how you do it?

resources/lib/main_service.py

@@ -66,7 +66,12 @@ class MainService:
     def __init__(self):
         log_msg(f"Spotify plugin version: {xbmcaddon.Addon(id=ADDON_ID).getAddonInfo('version')}.")
 
-        self.__librespot_session: Session = Session.Builder().user_pass(get_username(), get_password()).create()
+        self.__librespot_session: Session = Session.Builder(
+            conf=Session.Configuration(
+                store_credentials=False
+            ).Builder().build()).user_pass(
+                get_username(), get_password()
+            ).create()
 
         add_http_video_rule()