I was really excited about Scroll when I first heard about it, but after I looked into it more I lost almost all interest. I was looking at it almost a month ago, so it may have changed a bit since then, but at the time, the main things were that:

1. Even though almost all of the material about Scroll says "300+ sites supported", it's actually about 30 sites, mostly from the same few networks, and 304 "SBNation blogs". This was the list of domains initially supported: https://gist.github.com/archon810/b4ec827d5fbe9e22a43ad39ca2... (and I broke down that list by owner here, if anyone's interested in that: https://tild.es/lc6#comment-4ij7)

2. Scroll does not get you past paywalls: https://intercom.help/scroll/en/articles/3344875-does-scroll...

So if it's a site that's supported by Scroll that also has a paywall (like The Atlantic), you're expected to both subscribe to the site and Scroll to get a "clean" experience. It's also notable that even though the New York Times is one of the main investors in Scroll, they apparently don't currently intend to support it themselves (mentioned here: https://www.poynter.org/business-work/2020/revolutionary-a-h...).