After having searched the internet I found that this seems to be a very common issue, but anyway I couldn't find a proper solution for the problem.
To be honest: it seems very strange to me that for saving the database I have to fiddle around with the terminal shell. There should be a function included in the Neo4j Desktop to export / backup a database to a certain location.
Which requires me to make an account with Oracle to download it... ugh.
Unable to find any JVMs matching version "11".
so, if this is the first step of the user experience, it's a really bad omen for things to come. I guess the installer isn't self contained and I'll need to go looking for a specific JVM version?
Seriously? You can't make a smooth install process?