Recently went through wayfair virtual onsite/ panel interview process. Final round consisted of 4 1 hour interviews with various engineering managers/ devs.

App Design:
Automated parking garage

Coding:
IsPalindrome
LongestPalindrome as second variation which returns the longest palindrome in a given string or an array of strings if there are multiple of the same length.

Behavioral:
Focused on team building and leadership. Explain a time when.. questions.
Try to answer in STAR format. They want specific examples and no generic answers

System Design:
Shazam