OP doesn't seem to realize that leetcode questions are used verbatim by companies other than FAANG. Do you need to know how to solve leetcode questions? That

OP doesn't seem to realize that leetcode questions are used verbatim by companies other than FAANG. Do you need to know how to solve leetcode questions? That depends whether you're going through the front door or the back door. If you're going through the front door, regardless of your experience level, you are going through the leetcode hazing process because that's what your interviewers did and they have no intention of having spent hundreds of hours doing work without a purpose.