If I accept a friend request from someone I don't know, what all will they see?
It's a request to enable relationship viewing. You'll be able to see, and the other person will be able to see, the "tree" that connects you. If the research is correct, it can help to know how 2 people are related.
I've cropped off the living from this chart, to preserve privacy. Down the left side, the chart continues to me and on the right side to my 5C1R (5th cousin, 1x removed)
Hi Beth! I hope you are well.
If you need more info on Relationship Viewing, please see the Help Center article Relationship Viewing: How do I turn on or off the option to view my relationship to other users?