on OpenSUSE Leap 15.1 x64, I installed aMule from YaST2 Software Management.
Classical interface aMule goes huge on CPU and RAM eating 32GB.
As a workaround, starting daemon in background with amuled & on terminal, and then starting aMuleGUI remote control works just fine.
Also the web interface works localhost:4711 on a browser, as reported in other Fedora post.