No. journalctl won´t log what you do with your mouse. If you would have done it via terminal as a command, there would be the .history where you could find what you did.
My advice:
- clean up your desktop to a point you can overlook it (and you can name everything when it is missing)
- don’t link / (or other folders that are not owned by your user) onto your Desktop (this is a way to disaster)
- don’t ever work as root in the desktop (or you will regret this. This is the reason some linux systems will paint the Background in RED when you login as root)
- don’t save any files to your Desktop. Instead use the folder ~/Documents
- order your files in subfolders with good names in ~/Documents/Letters …
- don’t save files to other places on your disk
Every folder in / has ist own meaning. Please respect these meanings. The meaning of /home is that there are all users. The meaning of /home/username/Documents is that there are all Documents from this user. The meaning of /home/username/Desktop is that there are a few often(daily) used Programm-starters, Links to a few folders of this user, even some links (!) to daily used documents may be there.
If you don’t follow the rules, you will be bitten from time to time.
If this is kept, you are able to search for your documents in /home and under ~/Documents, and you are able to make usable backups from /home.
This said, there is another possibility to search for these “missing” files.
If these files belong to your user, and now are somewhere where they don’t belong, you could find them by searching for files with find and “owner=yourusername”
Otherwise you will need to look into your good backup There will be the folder Desktop with all missing files and folders.