I deal with this by subscribing to very few mainstream media sources since they typically report the same thing in unison with slight variation. The slight variation makes deduplication technically difficult. I use Nextcloud News, and maybe their future LLM models could accomplish this.
Looks good for files, but if you want total replacement of icloud/google/ms services such as contacts, calendar, tasks, notes, and so much more, Nextcloud is best in class.