What's the recommended way to install required 3rd party software

1. Where would you typically install a software from a third-party vendor?
2. In which directory do we install 3rd party software in Linux?
3. What are two methods of installing software?

Where would you typically install a software from a third-party vendor?

In most cases, it is most convenient to put the external package on the same media and in the same folder (or a subfolder or sibling folder thereof) as your distribution package proper.

In which directory do we install 3rd party software in Linux?

By convention, software compiled and installed manually (not through a package manager, e.g apt, yum, pacman) is installed in /usr/local . Some packages (programs) will create a sub-directory within /usr/local to store all of their relevant files in, such as /usr/local/openssl .

What are two methods of installing software?

They exist both as "standalone installer" (or "offline installer") and "web installer" (or "online installer"), where the former allows for offline installation as it contains all installation files, whereas the latter needs to download files necessary for installation from the web at the time of installation.