I'm hyper-minimalist when it comes to kanban. ClickUp has super customizable views and features which makes it the less "polluted" of all. I love how you can opt-in and out of the features, and make it as simple and clean as you want it to be. However, the +ADD SUBTASK on the Board view (see screenshot) still makes it much more polluted than it could be. It would be amazing if that could also be customizable, as I would really love to hide that button. That would give me a clean list with tasks on my board, no extra unnecessary info. That could be easily added to the existing Subtasks Hide/Show "filter" in the top right, for instance.