I set up the ubuntu 20.10 system perfectly for myself and installed some software. And can I keep the system I’m using right now to reinstall or give it to someone else? is it possible. can I reinstall Ubuntu 20.10 with all settings, apps and themes?
Clone Ubuntu 20.10 with all Settings, Apps and Themes?
From a Live USB, use Gnome-Disks, (three line icon, upper right), to Create a Disk Image of your perfect drive on a Flash drive, SSD or HDD of adequate size. (All data on the disk will be overwritten).
You can restore this clone image to another disk using Rufus, Etcher, Disks, SDC or mkusb.
For more details see: https://askubuntu.com/a/1300542/43926