The NaNoWriMo thread on the forums has a bunch more discussion, but IMO, plugins are really the juice that led me to abandon Scrivener for Obsidian.
A few notes I’ve not seen mentioned - the Dataview plugin is your friend. Learn it. Once you do, you can populate scene notes, location notes, literally any note with lots of metadata. Want to know which characters are in which scenes? Dataview can help. Want to know which scenes discuss the Sword of Sundering? You can make that happen with Dataview. Which characters hail from the Gloomwood? You guessed it, Dataview!
Besides Dataview, there are some fantastic writer-focused plugins. Chief among them, for me, are the Word Sprint plugin and the Longform plugin. Check them both out in the Community plugins page.
A final plugin that isn’t quite ready for the Community page (It is under code review, I believe) but does have a Github is Novel Word Count - this is a QoL plugin that makes tracking word or even page progress super easy.
I will post more information later when I’m not at work. Hope this helps, Obsidian is fantastic for novel writers!