Yeah, having to customize with env variables is not great, and adding bookmarks is much easier in superfile. Anyway I suposse one does not set bookmarks to often. Plus nnn was so fast I just tapped they keys to get to the directory I needed easily. Once I learned most shortcuts I was flying trough operarions.
It had some functionalities that nnn did not have like displaying processes or favourite directories and such. In the end I got back to nnn because I read that superfile had internet access plus the fact that I use a graphical file manager for things that nnn or many terminal file managers can not do with extensive plugins.
I do not, while yes you can socialize I think it intended to be used as an aggregator unlike other sites. Much like you can discuss(forum) and shop in other social media sites.
I get the idea automation, its great when it saves time and effort but when it represents a minuscule chance of chopping a limb off you it should never be implemented to the public.
In any case I agree with you and I make my gaps as small as possible while still visually sensible. Even on a large monitor there is not much point making gaps larger past some point.