Old, broken symbolic links might be sitting around your system; you should remove them. Examples on achieving this can be found here and here. However, you should not blindly delete all broken symbolic links, as some of them serve a purpose [1].
To quickly list all the broken symlinks of your system, use:
#find / -xtype l -print
Then inspect and remove unnecessary entries from this list.
What do I do with all these broken symlinks? Seemingly it is recommended to review the list and remove those “unneeded”. It appears to me as a Herculean task. What would you suggest that I should be doing?
I think I will follow your example and leave them alone for the moment. I also keep a note of the command you provided in case I want to remove all those broken flatpak symlinks. Thanks for that!
Alright. I didn’t know that!
It was actually the first time I ran the find-broken-symlink command and I was a bit surprised that there were so many of them.