Unfortunately it is indeed the case that the Flows panel doesn’t work well once you have more than 100 flows. This is a long-standing bug in the underlying list view control. We do plan to replace this control with another one in future to address this, but it’s not yet risen to the top of our priority list.
For the Project Info dialog, we should add a tool tip for the left-hand list so that you can see the complete title. (I thought this was already implemented, but it’s not.) I have made a note and we’ll try to get to that in the near future.