BootSelector is a tiny GUI utility for setting any grub menu entry as default.
It also allows you to reboot into any OS/kernel in your grub menu.
The initial version has been tested on the latest Ubuntu 24.10 and should work on other Debian-based distributions as well.
An RPM for fedora will be released soon after more testing is done.
System configuration with OpenSuse’s Yast seems miles ahead of all the others (at least those I have tested 🙃).
It doesn’t look particularly nice. German functionality over design. And that it does well. One can do A LOT with it. Plus it’s free even in Tumbleweed.
You’re tempting me to give it another try after over a decade. I used to daily drive Opensuse with KDE 3.5