Dude, did you even read your own sources?

"...few clinical trials of CBD-based products have been conducted, and none thus far have examined the impact of these products on cognition."

"Results provide preliminary evidence supporting efficacy and tolerability of a full-spectrum, high-CBD product for anxiety...A definitive assessment of the impact of this novel treatment on clinical symptoms and cognition will be ascertained in the ongoing double-blind, placebo-controlled stage."

This paper was just published a few months ago as well. The rigorous study of CBD is still very young. Due to the War on Drugs, there have been very few well-designed late phase clinical trials for CBD.