The page you were linked to says: Note: The note to self feature is no longer supported in Assistant. The Google Assistant now comes with a built-in notes and list service.
So yes Google disabled linking to other apps for notes and lists, and now has its own proprietary in-built notes and lists service. https://www.guidingtech.com/google-assistant-notes-and-list/ -- You received this message because you are subscribed to the Google Groups "MyLifeOrganized" group. To unsubscribe from this group and stop receiving emails from it, send an email to mylifeorganized+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/mylifeorganized/ffdf04b1-5a99-474e-9e43-9d1ec7c8aa21%40googlegroups.com.