I'm still a bit confused by the care-free "polycount doesn't matter" attitude of Nanite. I know it performs amazingly well for static meshes, but I can't wrap my head around the logistics of importing 5M-poly meshes into UE5. 1. If you're importing ~1GB+ FBX files into UE5, wouldn't that be impractical just for syncing…
IMO polycount will always matter and good topology flow will always matter. Until further developments are made to handle and work with limitless amounts of polys, as well as rig, animate and texture map nanite assets, I don't see nanite as a useful function. Also why would a game developer want to bloat their game file…