So how often do you work on someone else's computer compared to your own computer? Which use case do you want to optimize? Especially now that there are all the cool cloud services that could temporarily let you use Norton Commander on your bosses computer.
Can your tools included with Windows bulk rename files by having a convenient two folder display where you can just click on files to move them to the other side rather than having to drag mouse back and forth for each one of them? Imagine what could be achieved in these 20 years if there was a market for commercial file managers.