Dude same! I've been looking into immutable distros and I tried fedora silverblue but this seems better. I just bought a used PC to try it out just haven't had the time yet
Why over-complicated? I'm genuinely curious, as I think it sounds pretty cool that you can install apps from different package managers in containers, but export them to use them in your main environment.
I briefly looked documentation, all the tools they provide, etc. Why we need supporting both rpm, deb and own format too? Why Debian? A/B is better than btrfs or symlinks? Maybe I should read documentation more, but why? It sounds really complicated with too many whys (and whay more why's even compare to NixOS, being hardcore, but plain simple why).