RSS is just a protocol to read news feeds. Been around for decades but it's hard to monetize so you don't hear much about it. But virtually every news outlet offers some kind of RSS feed as do bloggers and podcasters etc.
Becauae of its ubiquity, it's easy to build out a broad group of subscriptions from many sources. News stories are almost always carried by multiple outlets. By subscribing to these sites via RSS, I see the same story repeated but every outlet has their own bias and their own angle and those biases are very obvious when you see the same story reported by different outlets.
Example, in Canada, the (currently Liberal, or Democrat as Americans would say) Federal government has participated in the international Covax program. Liberal leaning outlets carry that story as "Canada is helping poor countries get the vaccine" whereas Conservative (or Republican as Americans would say) outlets carry the same story as "Canada is robbing poor countries of their vaccines".
Sourcing your own news has always been the only way to combat the spoon feeding algorithms of social media but without RSS it would be nearly impossible to see so many view points so easily contrasted beside each other.
Never forget that we're at odds with social media. We want news but social media just wants to keep us on the site as long as possible. Those are conflicting desires and social media wins by algorithmically feeding us news stories that support our own biases which keeps us happy and on the site longer , instead of giving us a broad view of any topic which would necessitate showing us different and conflicting viewpoints .
I live a charmed life working in a #SOC with the smartest people in the #infosec field from my beautiful New England century home in 🇨🇦.
Twice a day my ManMe bot (as in Man pages) posts a random Linux command and its purpose. You can find them under the #manmebot hashtag.
My current writing is on Substack here (https://jonwatson.substack.com). If you want to read something but hit the paywall, look at the About page. There is an outrageously good discount button there :)