Graph

I've been preparing for this interview for a while now, and I'm confident I can answer most of the questions I'm familiar with the idea. Ex: if its a Graph, UnionFind, Trie etc... problem, I can almost certainly solve them. From the LC grind, I've come to realize that if you have no idea about how the problem is being solved, ex: If the problem is a 2 pointer problem, and its easy. If you don't know what 2 pointer does, you're never going to solve the problem, even if its easy. I have a phone screen tomorrow, the location is Sunnyvale, and I'm wondering if anyone had an interview with them recently, what were the questions on? Any general tips? I'm brushing up on some implementations, and I don't aim to solve more problems, I've solved around 160 problems already, and I feel like anything beyond this point will just be stressful and won't add any value. Edit: This is for L3 position