This seems sadly very true. Just yesterday I was implementing some slightly tricky javascript (not my main language) on hover show n neighbours to each side, and if a deficit on either side, expand to the other side. After about 20 minutes of struggling to get the offsets just right, I succumbed to just asking an agent to do it.

I'm sure I'd still be able to do it, but was saddened that I didn't get it as quickly as I think I used to be able to. Atrophy might already be in play.