If you are using Windows/macOS and want to learn Linux, Zorin OS can be a good starting point.
Some interesting features (esp. to Windows users):
- Familiar desktop environment & user experience to Windows and macOS users.
- Possible to run many Windows apps (by using WineHQ).
- It's free and proudly open-source.
So if you are interested in Linux, I suggest trying Zorin OS alongside your current OS or in a virtual machine.
P.S. OnWorks lets you test various OSes online. It's slow and time-limited but worth trying once.