I stumbled across this website today - https://tour.cyberfeminismindex.com/
Is there any plugin / layout that implements a similar dual story river with minimal sidebar?
There is, “streams” is similar if you close the side bar, but there are others.
I use $:/plugins/sq/Stories , from Stroll — A Roam-like experience in a free, downloadable file
I’m really happy with it, I’ve used it for about 3 years and haven’t had any issues with it.