Guys, after some testing, I decided to promote Debian as the first distro to use on Power. I noticed the great improvements that version 11 brought and I realized therefore that Debian is now much more usable than recently at the time of version 10. I also realized that it maintains a certain lightness compared to Fedora and Ubuntu, all load much faster than the other distros mentioned. Unfortunately Ubuntu continues to suffer chronically from some critical issues that unfortunately limit its use a bit and Fedora by now, since adopting the Gnome version 3.4X, is no longer usable as before and needs changes that must be known to do. At the moment I am therefore much more satisfied with Debian and its evolutions and so now I use it on everyone, hoping that it continues to be as good as it is now.