You have provided no evidence why your technique is superior. By applying to a maximum number of roles, you are increasing your "attack surface". Also, in many cases, when you talk to the hiring manager, they can/will funnel you towards other managers and roles with a better fit.
Well, Oxide was the only job I applied to when I left Meta in 2022. My plan was to broaden my job search if Oxide didn't work out, but even then I'd only have applied to 3-5 places in the following round after vetting the company's culture and values.
I've always preferred this kind of targeted application -- I've applied to 5 jobs total in my ~15 year career and gotten 4 offers, two of which I accepted. Everyone has their own objectives they optimize for -- personally, I care most about building monuments of lasting value.
Because I have no desire to work for "just some company". I only talk to companies where I actually know I want to work there and feel I'd be a good fit for what they do. Maximizing "attack surface" is only useful if the only thing you care about is a paycheck regardless of from where.