No, it isn't. From the website: Sublime Text is available for Mac, Windows and L...

wasted_intel on Dec 6, 2018 | parent | context | favorite | on: The Rise of Microsoft Visual Studio Code

No, it isn't. From the website:

  Sublime Text is available for Mac, Windows and Linux. One license is all you need to use Sublime Text on every computer you own, no matter what operating system it uses.