Best software to organize ideas?

So I have this pretty big novel I am writing for a long time and idk if it's just me but sometimes I forget some small details or informations and this creates some loopholes in my story. I was wondering if there's an app that shows some sort of timeline of my novel with information about locations, characters and other stuff that I can add and connects all of those.

I tried using Excel but it's not quite what I want, and I also tried using Obsidian but idk if I'm just dumb or that app is just really confusing. If you guys have any recommendations would be awesome. Thanks!