If you are registering branches against the project then it is using a Launchpad service.
There are many products that are registered in Launchpad that don't use the Launchpad bug tracker or translations or other features.
Launchpad is able to track upstream bugs as well, so if there is a bugzilla or other bug tracker, then launchpad can show the status of those external bugs. Launchpad can then be used to link these bugs to other Launchpad projects, or even other external bug trackers.
If you are registering branches against the project then it is using a Launchpad service.
There are many products that are registered in Launchpad that don't use the Launchpad bug tracker or translations or other features.
Launchpad is able to track upstream bugs as well, so if there is a bugzilla or other bug tracker, then launchpad can show the status of those external bugs. Launchpad can then be used to link these bugs to other Launchpad projects, or even other external bug trackers.