Hi Gianmo95
I’m fairly sure, that the majority of Qubes ISO are fine – which results did you get when you verified the download:
?
I don’t have a test machine (within reach) - but I’m fairly sure it’s to be expected that the “software selection” is as you showed (with the options “Qubes OS with Xfce” and “Qubes UI (Audio/Gui)” - I’ll try to check later).
To me, the real question is “why did the installer not put any files in /var/lib/qubes/template-packages/??”. Without those files, the “INITIAL SETUP” shows the grey “Whonix not available” … where it should give you the selection for “Fedora 38” and “Debian 12” (iirc).
Without any templates selected (since the rpm-files are missing in /var/lib/qubes/template-packages), I would expect the INITIAL SETUP to fail in spectacular ways … the script probably assumes those are available. 
In:
I suggested that you downloaded one of the missing rpm-files (the URL to download the rpm-file from is: Index of /r4.2/templates-itl/rpm/) and manually added it to /var/lib/qubes/template-packages/ before running INITIAL SETUP … did that solve the “[Dom0] Error (on dom0)” ?