When I was managing, I informally typed people during the interview process, which was very helpful in predicting both how they would interact with other team members and how they would do at particular tasks. However, I learned not to rely on self-reported personality types or tests, which are often answered aspirationally, not realistically.

To me, MBTI or Big 5 (not the actual tests, but their framing of aspects of personality) are mental tool kits for trying to make better predictions from limited data (i.e., the interview process). As a manager, I've found them incredibly helpful for avoiding problems (i.e., assigning the wrong task to a person).

Interestingly, in my personal experience, I've found logicians (ISTJs in MTBI) seem to be the most resistant to quantifying aspects of personality.