It's reductive to say that people who aren't "copy-pasting tex and files across 3 RDP sessions deep" are not "working everyday." While Windows fits your use case, some people do use SSH for their real work as well, even if it is simpler.
Somehow all that 'real work' boils down to configuring servers. Most people don't configure servers 24/7 or even 8/5. They need to work with files of different formats and with different apps. Now tell me, how would you use SSH (not SSH tunneling, lol) to loot at some .jpegs to decide to what would be used in somewhere.