What a typical Linux user mindset! That IS one of the largest issues for non-Linux users. Linux is by large margin a niche OS in desktop market share. So it is no issue if all programs are developed only for Windows and/or Macintosh. Right?
It is not a form factor everyone takes everywhere. Webtoon can be read comfortably anywhere anytime with mobile phone pretty much everyone has in the hand or in the pocket. That is huger difference.