I know this is probably a common topic. For me, I’m not sure if it’s a “trope” or just totally misinformed writing, but it’s how many authors approach alcoholism. Some examples are Girl on the Train and The House Across the Lake, among HUNDREDS. If anyone else here has struggled with alcoholism, you know it’s not just "i woke up after downing an entire bottle of whiskey but was able to shower, down a cup of coffee, and solve a murder. "
I read a mystery a few months ago where the detective was autistic. It was actually quite interesting, because you can see the areas where his autism helped him focus, but also where it limited his abilities. Near the end of the book, there’s a big scene with the bad guy, but the bad guy gets away for the time being because of some sensory issues. Anyway, it’s nice that it wasn’t all super convenient that he just happened to know about codes or Egypt or whatever.