So I can say I've personally never read the RSS spec, but all you need is a functioning feed.xml/index.xml right? I use Hugo[0] for my statically hosted site[1] and I honestly have never even thought about it (which address is the RSS feed) much until now.
I think this battle could be won in the tooling -- if all/most of the static website tools that you'd use support RSS, you can expect that it will show up (Hugo, Gatsby, VuePress, etc).
I think this battle could be won in the tooling -- if all/most of the static website tools that you'd use support RSS, you can expect that it will show up (Hugo, Gatsby, VuePress, etc).
[0]: https://gohugo.io/
[1]: https://vadosware.io/