Yes, you will not get good information by asking strangers.
The best way is to ask the person themselves, once you have a relationship. Unfortunately, there is a view- which was expressed on this forum some time ago- that it is ok to hide things from your potential spouse.
NEEDIDEAS- With shidduchim its not broken telephone. Its usually intentional misleading information and/or not giving all of the information. But honestly, I dont have the patience to discuss this topic again. It can go on for days….