Not that it’s something you do so often but right now you have quite a few clicks involved if you wish to assign a default dashboard. IF you go from the dashboard to edit > manage dashboard > click the dashboard > set as default > update(might have added this unnecessary step).
Sure, if you go through the settings it’s less clicks but i usually find myself wanting to do that when i’m in the dashboard.
Would be great if the option appear when you edit the dashboard, near the 3 dots (when it’s not the default one).