I tried Logseq recently, and I found that it uses indentation to show the hierarchy of outlines. What’s more, the backlink pane in Logseq can also show the hierarchy as pictures below, which I think is very useful for getting the whole picture when surfing my notes. Is there a way to achieve this in Obsidian?
You can use outlines with Obsidian. And if you add backlinks, the backlinks panel will surface the sub-items related to a backlink to provide more context.