In case you haven't heard, Asana sent an email to a limited number of users and posted a nonchalant message on the Asana Forums that they plan to remove the Dashboard feature for all users on December 1, 2018. They have also alluded to a replacement feature called that will debut around the same time—but only for Enterprise customers.
Dashboards were Asana's attempt to provide a high-level overview of various projects with the ability for team members to update project statuses and add notes. Some teams have integrated Dashboards tightly into their workflows, but most teams do not seem to have not found the current implementation helpful and thus aren't using them. A big part of this is there is no way to roll up projects together, add and search by project metadata (like Custom Fields), or track projects with any type of system like OKRs.