The problem with this point relating to dementia is that dementia specifically makes forming new memories harder. So they are unlikely to remember any specifics including their diagnosis. Also for the patient saying dementia or memory problems will be more than enough to tell everyone who’s not a doctor.

The frontotemporal bit won’t mean anything to the general public unless they remember more human anatomy than most, but everyone has heard of dementia that one is in common parlance anyway I think.