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The 5E adventures and sourcebooks are canon, not novels, video games, or comic books
I saw this interesting article talking about it (as part of an interview with Jeremy Crawford).https://comicbook.com/gaming/amp/news/dungeons-dragons-canon-roleplaying-game-novels/
Anyways, as far as I know this is the first time someone from WotC has confirmed the novels, video games, and comic books aren't canon.
"Basically, our stance is that if it has not appeared in a book since 2014 [the year that Dungeons & Dragons' Fifth Edition core rulebooks came out], we don’t consider it canonical for the games."
They also don't consider any print product released before 5E to be "canon" either. Which makes sense given the sheer volume of content released over the last 40 years.
Anyways, I know for years people debated here about whether or not the Baldur's Gate novels were "canon" compared to the games. So I guess this settles it.