Yeah, I've been writing software that provides feeds for RSS, but I exclusively use Atom. It's just a better format. It does create ambiguity when using a site like this because I'm not sure if my sites will qualify as having an RSS 2.0 feed or not.
Atom's problem is that RSS is also the final modern form of RSS.
Atom was killed by podcasts. Tbh RSS 2.0 is good enough
I was expecting that they would support podcasts almost immediately and couldn’t believe that they never did. It was so easy, nothing to it.
Why is Atom better?
There might be other reasons, but chrismorgan linked a nice write-up in a sibling comment: