Yes, the Life is Strange comic is official. It adheres to the established lore and characters of the franchise, providing an extension of the story in a sanctioned manner.
In most cases, the Life is Strange comic is regarded as canon. It provides additional depth and context to the main storyline, and is consistent with the established universe of the franchise.
Strange World isn't a comic. Usually, when we talk about Strange World, it refers to a particular fictional setting or story that isn't presented in the comic book format. Maybe it's a part of a broader multimedia franchise, but not a comic specifically.
The life novel is extremely strange. It features bizarre circumstances and uncommon scenarios that make it stand out. You'll be constantly intrigued by the oddness throughout the story.
It's a game that follows the adventures of a teenager with the ability to rewind time and make choices that impact the story. The story is filled with drama, mystery, and emotional moments.