Well, yeah, tough luck. There are people out there who keep complaining about talent shortage, and not finding people to do anything at all. But you go through their hiring process and it's all about 10 rounds of questions on OJ sites like LC. Plus they have a bar raiser round which is just basically more of the same.
This actually makes the problem much worse because the only people who are acing these tests are people who are investing their time in acing these tests and not people who are actually good at their jobs. If you found a job there is little incentive to do any thing at work, and you are just better off continuing to practice interviewing further, so that you can quit to grab another 50% raise in 6 months.
Ironically these kind of people are considered to be in high demand. Most of them haven't done one single turn key project their whole lives, and wouldn't know or even stay to do one if needed. The real ones who have proven track records of delivering projects aren't even considered hiring because they don't know a dozen ways of inverting a tree.
The world is an unfair place, most companies with these hiring processes, have moats which are pretty much an infinite gravy train, so its ok to do all this. This is the game, We just have to deal with this as we go.