Oddly most of these systems will let you specify dependencies, but not show them. Even the good old GANTT chart would let you do that. JIRA has umpteen kinds of "ticket X relates to Y" one of which is "depends on".
I think it's some sort of weird cultural impedance mismatch where the teams have sort of moved over to Kanban or Scrum or whatever, but the managing structures haven't. I used to work somewhere where managers spent a regular big chunk of time manually reconstructing GANTT from Microsoft TFS Kanban boards...
It's a doubly weird cultural impedance mismatch, because I am a dev, and I used to laugh at all the MBA PM gaant PERT mumbo jumbo... until I spent some time re-evaluating my work experience, thinking about what kind of things I'd like to improve in the way my team and I manage our work... and realized I'd very much like a DAG and a GAANT chart and critical path determination.
I think it's some sort of weird cultural impedance mismatch where the teams have sort of moved over to Kanban or Scrum or whatever, but the managing structures haven't. I used to work somewhere where managers spent a regular big chunk of time manually reconstructing GANTT from Microsoft TFS Kanban boards...