Fact: The LeetCode loop sucks. So couldn't any Director or VP in big tech just decide they are done giving that interview? They have the resources to spin up something like this in a week. Even outside big tech, companies can very well think of non LeetCode style interviews, some already do
The problem is, many engineers want new engineers forced into this type of interview, because they had to do it, so you have to do it too. Not for any reason better than that
I'm not sure a full featured well polished product like this one can change toxic engineering culture when it comes to joining the club