Caveats…
I use Curio, but I am most definitely not an expert.
Curio excels as a visual note tool (with meta data)
MPU thread on Curio
Zengobi User uses of curio
Is there anything in your goals than would benefit form a graphical presentation?
Obsidian has some comprehensive tools to slice, dice and collate notes; especially with metadata and data view(query metadata). Curio canvas offers corkboard exploration of notes with links. I think most of what you want could be accomplished with Obsidian.
Note that Curio can share a text note in multiple places, so you could use Curio AND Obsidian.