Agreed with @decidim/product the tentative behaviour of the drawer when a drawer links to other resources (ie. a Proposal links a Result that links a Meeting). So, when a resource opens another one:

• we only keep one drawer
• we update the URL so we have a permalink in the address bar and the browser back button works
• we include a parameter in the URL to reference the item from which this visit originated
• with that param, we include a button before the main heading of the drawer to link back to the original item