QGC Translation (Language) Support

Does Qgroundcontrol v.3.2.4-BlueRobotics-Rev6 support different languages?

There is serious work going on at Qgroundcontrol (v.3.4.4) side. (Translation Support · Issue #3961 · mavlink/qgroundcontrol · GitHub)

No, we plan to move on to the upstream QGC 3.4.4 next year. We will no longer be producing our own custom builds, and we will enjoy all of the benefits of the greater community development.