I run Linux on my computers. It is a free operating system and it runs on more than 90% of the 500 largest world computers. All in all, it's a great OS. Most people who do digital photography, nonetheless, run Windows or OS-X (Apple). So, how do I get around editing my photos on Linux? I use three very good free software, namely: GIMP, Darktable and RawTherapee. I strongly recommend them. My feeling is that most of what is done using Photoshop and Lightview can be done using these free software. Here are the links:
The photo organizer/manager I use is Shotwell:
In short, there is life outside the Windows/Mac world.