I’m running openSUSE Leap 15.6, which comes with libICE6 installed.
This is what I get with an install of the new version of Duplicati:
Problem: 1: nothing provides ‘libICE’ needed by the to be installed duplicati-2.1.0.5-stable.x86_64
Solution 1: do not install duplicati-2.1.0.5-stable.x86_64
Solution 2: break duplicati-2.1.0.5-stable.x86_64 by ignoring some of its dependencies
Any advice appreciated!