After submit resume get OA the next day, pass all the test case of OA but still get reject because my they said my resume is not a good fit to them

OA followed by 2 technical rounds. Each round has a behavioural followed by leetcode. Difficulty around leetcode medium/hard but it's not that difficult. Solved the problems successfully, interviewers seemed friendly but did not move on. Don't think they are serious about hiring you can see from linkedin how many grads they hire, it's really a waste of both the candidate and interviewer's time.