Think of the opportunity Linux creates in a place like India. If you have some smarts and a good work ethic, Linux and a machine from 2010 allows you to run the very latest software used by tech giants all over the world.
You can self-teach a huge number of skills on Linux and become deeply familiar with the REAL software that professionals are using—even in the West. One you know your stuff, you can leverage that into a job that pays fantastic money by local standards.
If you want to be a developer, you can build a GitHub portfolio or participate in Open Source projects.
If you are more entrepreneurial, you can post videos showing others how to use the skills you have acquired. These not only make a fantastic resume but they can generate advertising income. What may seem like a poor return on time in richer countries can provide important income in poorer ones.
If you have not tried it, you may be amazed that you can run up-to-the minute current versions of Docker, Kubernetes, databases, dev in any language ( even .NET ), and almost any other in-demand technology on really old Linux hardware.
Beyond hard technology skills, a Linux computer is just a fabulous productivity tool. You can get hardware and software to help manage your business that you perhaps could never afford otherwise. If you are a creative professional, you have access to amazing tools. If you are a photographer, you have pro level tools. If you are an architect or engineer, same thing. Again, we can say that some of these are not “professional” but I bet they do the job in markets where few can afford expensive software.
About the only things that push the hardware envelope these days are video editing, AI, and gaming. Even these work better than you may think though. It will take you longer but you can do pretty good video editing on 2010 HW for example.