TLDR; learning Rust through canonical code in tutorials often requires the student to learn bits about the language that are more advanced than the actual problem the resp. tutorial tries to teach how to solve in Rust. ;)

I prefer the latter now that I understand how all the Result/Option transformations work. As a beginner this would be hard to read but the former looks clunky.

Clippy also got pretty good lately at suggesting such transformations instead of if... blocks. I.e. I guess that means they are considered canonical.

In general I find canonical Rust often more concise than what a beginner would come up with but it does require deeper understanding. I guess this is one of the reasons why Rust is considered 'hard to learn' by many people.

You could actually teach Rust using pretty verbose code that would work but it wouldn't be canonical (and often also not efficient, e.g. the classic for... loop that pushes onto a Vec vs something that uses collect()).