When they generate such code I hit delete and start over. I mostly don't have a problem understanding the code that Claude writes (or whatever AI I'm using today - my company keeps changing what they want me to use). It sometimes takes some time to figure it out, but it isn't any worse than figuring out what other programmers have written.

I do however need several rounds of "review this code", and pointing out trivial details that are wrong, before it is worth me trying to figure out the big picture.