When I was hiring back in maybe 2020, I used a basic FizzBuzz test. Yep, the FizzBuzz test you've all read about. About half the people (all college grads) who took it could not pass in the allotted hour. Yup, an hour to do FizzBuzz. Whatever language you want. Whatever you want to Google. I'd say 40%-50% could not do it.

A common error was not being able to get the first number evaluated to be 1. They had written(copied) for loops as `for i:=0;i<100;i++` so many times that they couldn't understand that setting i to 1 was all they needed to do. They didn't see the code. Just the "loop line" and it wasn't doing it right. Then it was making it stop at 100 instead of 99. All that before even trying to test mod 5 and mod 3 first.

The people who did pass it would have written it before I'd even finished describing the problem and they would all but sneer (in a professional manner) at the rest of the code "challenges." We made offers to those people and they worked out great.