I posted something similar to you. I think the jump is not doable because it requires massive investment in a lottery ticket. Not only are FANG interviews leetcode level hard, I have heard friends at such orgs talk about the anti-loop. Even if you got to the point of solving most leetcode problems, the anti-loop can reject you. I know plenty of brilliant engineers not getting paid the value they create, because they have kids or work a tough job or volunteer or whatever, that makes it so they will never get a FANG offer.