Provide structure. How do you use Zettelkasten in Obsidian?

My fleeting notes are part of my inbox. After processing they are part of my permanent notes, part of my reference notes or they got deleted:

For me all types of notes are within my Zettelkasten. Others use the term Zettelkasten for a subset (e.g. Permanent Notes and Reference Notes). How would you like to group your types of notes?

Here is a link to my templates: 16 Obsidian Templates For Zettelkasten To Start With

My drawings are integrated by using a property in the frontmatter:
visual: "![[image.jpg]]"

and a Dataviewjs snippet within the note itself:
dv.paragraph(dv.current().visual);

If you want to see an overview of the structures used for a Zettelkasten, here is my “Map of Structures”: Link notes. But how? - #6 by Edmund