I don't do interviews in my current job (mostly because the pandemic really did a number on hiring) but in my previous job the only coding question I asked was what I thought was a fairly simple string problem. They could assume ascii, use any language they wanted, and make any other assumptions to simplify the problem.

My then-co-workers liked to ask harder algorithmic questions but I wanted to give the candidates a little bit of a break with something easier.

It didn't always work, but at least I tried.