I would like to backup everything on my computer (as simply as poss) and save it somewhere else like a usb drive.
For example I would like to copy everything, my desktop, theme, all my favourites from different browsers like brave\chrome and their extensions\add on, downloads folder, etc. So when I rebuild my computer I am able to see it like it was before (or close to it). If something needs to be omitted from the above then please advise. I am looking for a standard way to backup my computer, either via an app or the terminal.
Can someone show me the exact command lines I will need to write into the terminal for this.
Then the exact command lines to write, after I have logged into a new computer or user profile to copy everything over.
I understand to reinstall the new apps for simplicity's sake. If I reinstall Brave from scratch for example, will I still be able to retrieve my favourites? If so, please can someone advise how.
(I had edited the above, after the suggestions made).
I am using Ubuntu 20.04.
I am new to Linux.
Thanks in advance.