New operating system = new way of installing applications (and just about
everything else)

Windows way: buy a programme or hunt on the internet for it. Each programme
has its own installer. Viruses proliferate on programmes you download on the
internet. The programme installs where you tell it to install and it may put
an icon on the desktop and start its own group in your menu which you have
to clean up every once in awhile.

Linux way: the application is free and found in a menu of a package manager
on maintained repositories that are free of viruses. The installer is
standard. The application does not allow you to install it where you want
and it never creates a desktop icon and messes up your menus. It creates an
icon in pre-established groups that never change.

In Windows follow Windows protocols and in Linux follow Linux protocols. If
you confuse the two you will never adapt.