I applied directly in linkedin

phone screen:

https://leetcode.com/problems/implement-queue-using-stacks/

Onsite:

Round 1: 60 mins

1. LP questions
2. https://leetcode.com/problems/search-a-2d-matrix-ii/
3. Circular primes from 1 to 1000

Round 2: 90 mins

Lunch with Director and he asked many LP questions and at the end we have 15 minutes left and asked me one system design question - Facebook messenger for million users

Round 3: 60 mins

1. LP questions
2. Remove duplicate nodes in a binary tree and all the duplicate nodes should point to original node...

Round 4: 60 mins

1. LP questions
2. System design- youtube live chat ( let say some live Streaming is happening and you need to design a live chat)

Round 5: 90 mins (hiring manager)

1. LP questions
2. Generate all combinations (sum) for given elements in array

Except 3rd round, I did well in all other rounds.