Activity dashboard should have a filter for important events (at a glance)
Currently there are the following filters on /dashboard/activity: All, Push Events, Merge Events, Issue Events, Comments and Team.
It seems that new merge requests go to Issue Events, merged MRs go to Merge Events, and new issues go to Issue Events. There doesn't seem to be a single filter for important events which would be new MRs, merged MRs, new issues, closed issues, etc. Basically what one might want to see at a glance.
P.S. What does Team do? I'm not sure what a Team is in GitLab as I only know of groups, nor does it ever have any events there.