Kimchi Reader is a Progressive Web App (PWA) – think of it like a special website that can be installed on your device just like a regular app. This means you can access some part of the application even without an internet connection, once it is installed.
Kimchi Reader can be installed on desktop computers just like on mobile devices. While there's no significant advantage to doing this—it will function the same way as accessing it through your web browser—it's all about personal preference. If you like having a dedicated icon on your desktop for quicker access, go ahead and install it. It's all about what makes your reading experience most comfortable for you.