Completely agree; the scattershot approach is really only good as the basis of a clickbait blog post. They would have been better off spending two hours per day doing leetcode, then just a few technical interviews.

My last round, I refreshed my memory on algos and did a bunch of leetcode, had two onsites, got an offer from one.

I didn't "wander" into anything, but I did plan it out so my effort would be more effective.