Check out Anytype! It is a local-first cross-platform app with Notion-like features, and it has a Kanban view. It is SUPER customisable, I have set it up with a PARA workflow that fits my needs.
I actually very recently tried it. I'm sure it's great but something about the UI or maybe general paradigm switch versus apps like Notion really confused me. It looks great though, so I'm sure I'll give it another go sometime when I have a bit more time to really learn it. Nonetheless, I appreciate the recommendation!