Undervolting AMD GPU (RX 6000)

Is there a Tool, GUI or command Line, that lets me undervolt my AMD RX6800?

I already Googled this, but all I could find seems to be dedicated to rather old GPUs, if at all.

With AMD CPU and the newest BIOS this is pretty good covered, but I would also like to so that for my GPU.

Any Feedback is appreciated, thanks.

Tried CoreCtrl / CoreCtrl ยท GitLab from official Manjaro repo?

Not yet, but will give it a try!

Nope, CoreCtrl is not the solution I am looking for.
Downloaden from official repository but the App Shows Up all empty, could not make it work on my Computer.

Is there Something Like GreenWithEnvy for AMD GPUs?