In Live Plans, I used to be able to predict when a phase would finish using Team Velocity. And how close we were to the proposed launch date! (Always too much feature scope to deliver but also gave the Product team an idea of the SP size and scope to cut to meet a phased launch.

How do I get the same visual output from Advanced roadmaps?
Each phase has Stories and tasks across multiple EPICs and we only use Tags for Feature rollup.