Hi,
I had the the same problem with purchased version on Ubuntu 24.10, so I uninstalled Cider, downloaded debian and flatpak version. First I installed debian version without troubles but there was no Cider icon, I have to run Cider from the terminal and this version can't connect with running Apple, after I entered Apple code I was still unsigned. I uninstall this version. Flatpak version installed smoothly, it connected to Apple itself and works fine - maybe it's your solution. One annoying thing it has cogwheel icon not original cider but it's minor problem, anyway I'can't solve it.
Good luck