Not a single time in my 35 years as a software engineer; in times I use state or other diagrams, but besides that I just explain the intention in prose comments

Not a single time in my 35 years as a software engineer; in times I use state or other diagrams, but besides that I just explain the intention in prose comments where necessary. Pseudocode is just another "language" you have to learn, which is why I prefer algorithm or compiler books with examples in common programming languages.