Debug mode: Connection to serial pots and raw sockets is more user-friendly with PuTTY.Familiarity: users are more comfortable using an SSH client they got familiar with while using Windows.
The quickest reasons that come to mind for such scenarios include: Linux distros ship with SSH capabilities built into their terminal but in real-world environments, I have seen PuTTY being used instead of the default Linux systems more time than I cared to count.
Read Also: Best Command-Line FTP Clients for Linux PuTTY is a free and open-source cross-platform SSH and telnet client that even after being around for over 20 years remains one of the most popular SSH clients being used especially on the Windows platform.