What do you want to restore from your ‘old’ system? How do you currently backup your files?
TimeShift is used to backup the system files so a TimeShift backup would restore the system in the state it was when taking the snapshot. It doesn’t save the /root/ or /home/ folders, it is not meant to do that. If you restore a TimeShift backup after reinstalling the system on KDE, it will restore the previous system.
This is how the forum works, new accounts have lower permission, this is called the Trust Level.
Anyway, you never post a terminal output as an image this is non readable and considered wrong to do so. You put terminal output between three backticks so it gets properly formatted and is readable by everyone, and doesn’t waste bandwidth and storage, example: