After opening a subtastk-card add a way to go back to the parent card.
The back button of your browser works well in that case.
What else do you need?
sorry, I didn't expect that, cause the back button doesn't work in every situation, for example, if you switch between the project oversight and a specific project.
Also, we do not use Kantree exactly in a browser - we made our own nativeish kantree-app with electron and this project here: https://github.com/jiahaog/nativefier
This turns your kantree app into a "native" app for us. Here's a screenshot:
(there are no back-buttons as you can see, but I guess this just our own thing. So this ticket is maybe nothing to resolve four you.