Myers-Briggs can be eye-opening and uncomfortable. It will tell you what you don't want to hear. Equally, it is a fascinating insight into why we behave the way we do, and why we might come across as rude when we think our behaviour is perfectly fine.
A potential partner who wants to impress will answer the questions in a way that is more desirable socially. There will be some softening of their answers.
You probably have a long list of expectations but if we want to be realistic, I suggest you think about five non-negotiable values or characteristics you are looking for in a potential partner.