What is friend reach for shared posts?

I’ve seen an actual real people with thousands of friends and like per image is just around 20… Some posts of my own friends do not show up on the news feed I can only see them on their wall… What reach are you getting from your accounts with friends?

I guess it depends if you are engaging with those friends and if they are engaging back. For example I have 1000 friends in my FB and I won’t see the posts from everyone but if it’s someone I chat with and like his posts I will probably see all of his posts in my news feed.

I see like the same 20 people over and over on my personal feed and I follow like 1200 people.