Hello @LKits, and welcome to the forum - it’s nice to hear you like Duplicati!
There are a few centralized reporting (not management) projects people have created including dupReport and Duplicati Monitoring, however neither provides “management”.
Deciding what sorts of features you are wanting to implement and frequency of communication between client and server can effect the technology choices you make. Are you looking at just centralized reporting / dashboard (as your example shows) or remote management where your server can do things like create / edit / start / stop / delete backup jobs?