There is no so-called Project Manager role in Diciplined Agile.
Product Manager/Coordinator exists (as a Leadership).
Architecture Owner is a person who identifies and invests in the architecture that is required and evolved in complex system development. (Similar to Scrum Master, but Scrum Master doesn't necessarily deal with architecture)
The standing position of Product Owner, Architecture Owner, and Development Teams (Team Lead, Team Member) that move autonomously. It is desirable to apply it in practice without understanding the role. Of course, it is possible to have a dual role. You can choose depending on the situation of the organization and team size. Choose Your WoW.