One thing to note is that most weed strains now are very high in THC and low in CBD. Naturally, they were much more balanced and I think high-THC might be part of the problem and consuming more balanced (and lower percentage) strains may be much better. Anecdotally, I definitely find that higher less balanced strains give me more of a brain fog than weaker more balanced strains (less balanced strains but taking CBD pills separately to balance it out even works too).

I mean, heavy use either way may be bad and boundaries are important with anything (weed, beer, chocolate, etc), but smoking the strongest stuff may be extra bad.