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. "
The best alcoholic portrayal I’ve ever read (I struggle with it, too) was Paradise, by A. L. Kennedy. It’s not a happy book but it is fiction and it hurts to read. Highly recommended. I don’t know if A. L. is herself an alcoholic but please check it out.