[SOLVED] Minimal Setup of Linux Mint Xia Cinnamon 22.1, and Some Shortcuts

[1] Making the installer of Xia:
1.Downloading ISO image
2.Making the installer using rufus with the DD mode

[2] Registering and removing apps from the favorites:
Right chick of app icon in the menu

[3] Setting firewall:

1. Click Firewall icon in System
2. Setting as follows:
   status: on
   incoming: deny; outgoing: allow

[4] Downloading all wallpapers from previous versions:
$sudo apt install -y mint-backgrounds-* ubuntu-wallpapers-* ubuntustudio-wallpapers xubuntu-community-wallpapers-*

[5] Additional apps to be installed:
1.ttf-mscorefonts-installer
2.New Version of OfficeLibre
If the version of the OffieLibre is old after the system is installed, delete it then install the new version form the software manager.
3.Pinta
4.Kdenlive
5.Galculator
Installing from
　https://community.linuxmint.com/software/view/galculator
6.Bleachbit
7.SublimeText4　
Setting in accordance with the contents in the following url:
　https://designerbrg.com/sublimetext_howto/
8.Python3
9.Acivating WiFi
Setting as follows:
　https://qiita.com/elicit777/items/5df432e7a2a6411f5740

Others:
1.Keyboard Shortcuts
Shutdown, Restart, or Suspend: Cntl+Alt+End
Logging out: Cntl+Alt+Del
The other shortcuts 'can be or are' assinged to the "keyboard" menu in the system.
2.Starting the terminal: Cntl+Alt+T
Copy:Cntl+Shift+C
Paste:Cntl+Shift+V