I tried replacing Trello with the Kanban plugin in Obsidian and here’s how it went
Can it replace your project workflow?

Thanks to its interlinking capabilities, Canvas board, graph view, vibrant community, and flexibility, Obsidian is quickly gaining popularity in the PKM scene. While it excels at knowledge management, Obsidian doesn’t support databases and Kanban boards by default. Here is where a third-party plugin called Kanban comes into play.