There are millions of blogs and news sources to browse off the beaten path. It really depends on how the site is built. A Wordpress enterprise solution has a default rss feed, but it can be turned off should the site choose. A medium or ghost based site has the same toggle. For a more bespoke solution it is extra dev time not all sites opt for anymore because so few people use rss these days.
Back in 2010 at the height of Google Reader’s popularity rss only accounted for 10% of traffic and depending on how the feed was configured it might consume 30% of the non-money-making bandwidth. There was a push to try to monetize rss, but it kinda backfired and the technology faded into (relative) obscurity for the average person.
There are tens of thousands of absolutely amazing blogs and news sources online today with no support for rss.