Thanks a lot @computersavvy after cleaning up the config files. And rebooting it worked again.
As I mentioned above, I was checking the wiki from arch. There it was saying that we do have to take the stuff from bash, we need in zsh over in to the config files.
I guess that I will create a new topic in discussion to find out the Fedora specific config for Wayland and x. The difference and where to declare paths I need in zsh (I want to put the config files in a subdirectory like ~/zsh) so I can manage them via Git.
If you use ZSH in your daily work, you might interesting to participate on the “Brainstorm” discussion: ZSH dotfiles how to manage | integration of variables/paths from bash | pitfalls