Nope. There was no reason to use gas. US intelligence decided there was no evidence.

https://thegrayzone.com/2021/07/26/syrian-insurgents-guilty-of-red-line-2013-sarin-chemical-attack-study-finds/

"A new open-source study concludes that Syrian insurgents carried out the Ghouta sarin chemical attack in August 2013. The explosive findings add to a growing body of public evidence that undermines US-led efforts to blame the Syrian government, which almost led to US military intervention."