I use Quartz to build this Digital Garden from my notes in Obsidian and by default, they all use the same open graph image so when I share a link in social media or chat platforms, they all show that image.
For specific notes, I want to have a custom one.
According to documentation for frontmatter plugin, I can define that with properties socialImage, image or cover. The value should be a path starting from the /static folder in the Quartz project, not an asset in Obsidian.