There are some similar threads on filtering/sorting by collaborators (e.g., this one), but I think most of those have been solved with starred searches and customized project views.
I would like to create a dashboard that serves as a command center of sorts for a user; one of the charts would be all tasks due within x days where they are a collaborator. I know this can be accomplished with the advanced search, but I want to give users one single screen that they can go to, instead of having to toggle between multiple searches/dashboards/inbox/my tasks, etc. I am genuinely surprised that this is not already supported in dashboard charts (unless I completely missed it), since it’s supported virtually everywhere else in the platform.