How can I see a list of all tasks assigned to me across all boards?
Hey @alan2 
Unfortunately that wouldn’t be possible for now, we do not have “workspace overview” feature just yet.
However, it is on our roadmap and it is currently in the planning stag, here’s where you can check it out and vote for it.
Since our automations were released 2 days ago, we can expect to see some new features move forward - so I would advise you to check out our roadmap from time to time - to see and get an idea of what is coming 
Hope that helps 