On the other hand, I’ve seen very strong candidates who nominally worked the same job for 10-15 years, but when I probe I discover they have explored every nook

On the other hand, I’ve seen very strong candidates who nominally worked the same job for 10-15 years, but when I probe I discover they have explored every nook and cranny of that job, developing expertise in the entire possible scope. That’s a positive look IMO.