Should see it at the bottom of the screen. Looks like two people icon?

I see the friends and followers lists, but I've gotten notifications of friend requests, but cannot find them in the app to accept!

When I got your notification I just clicked on it and it took me to your profile. First icon on the left or the page said "respond."

Yeah, I did that too, but I also did that when I had more than one notification. In that case it took me to the first one, but the other notification disappeared!