As I mentioned above -- I don't like that the only article I could find of any repute which mentioned the leaked OPCW report was the Independent (the other option was InfoWars). And yes, about half of the article does appear to be at least slightly bullshit. But the leaked report was so ignored by mainstream media there isn't even a mention of it in an opinion piece in more reputable papers like the Guardian.
Aaron Mate did a piece on this[1], who is definitely a more reputable journalist (though not mainstream). I also just found that (of all people) Tucker Carlson mentioned this on his show[2]. Then again, I have many other issues with Tucker Carlson.
[1]: https://thegrayzone.com/2019/05/25/opcw-syria-gas-attack-sta...
[2]: https://www.activistpost.com/2019/05/were-being-played-tucke...