Not easy at all. Nanite makes things much more simpler but hurts gamers with its overhead.
It’s fine if we should disagree on that, everyone who takes a look at the test forums can form (Bad Pun)an opinion 
based on their games needs instead of “Enable anywhere possible!”.
Again I have shared an Idea that is similar to the Nanite workflow but also benefits gamers when it comes to saving performance in case anyone is reading.
Personally, I think AI workflow would be 100% optimal and not far-fetched at all thanks to the apparent RTX remix AI workflow. If Nvidia does it first, then good publicity stunt of their part but Epic can invest now that all three major GPU brand have AI cores.
(I am NOT promoting AI help performance in real time, this is a developer tool idea ONLY!)