Didn't even bother looking into it because there's obviously not enough data yet to say anything substantial about GLP-1s and Alzheimers. But your comment should probably be the top.
I’m not an expert on this, but haven’t GLP-1’s been used for quite a while on more limited scopes? So maybe there’s a cohort of people that could approach statistical significance.
Cognitive Decline != Alzheimer's. There are other forms of cognitive decline in aging.
GLP-1s have been used for over 20 years. There likely is enough data to say something, even if it's not water tight.