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Yeah, I kinda know what you mean by fog. I have a "low key" addiction to weed because I'm a bit emotionally dysregulated and weed helped with that. So, when I'm struggling to cope I sometimes wish I had weed at hand.

However the fog thing is real. I noticed it on myself when I stopped too.

It did without a doubt help me live a somewhat more normal life than if I hadn't been using it at the time.

However eventually as I got better (in general, still got acute episodes), the fog/downside outweighed the benefits.

I think it should be studied more as a form of medication. Maybe smaller doses and administered orally, as to avoid the negative side effects associated with smoking or vaping it