Honestly most of those companies don't look at their resumes. Back when I was in college I submitted my resume to one of those companies no less than about 10 times.
And then suddenly out of the blue some PM at that company reached out to me saying they came across my website and saw a couple cool projects and asked if I would be interested in sending them a resume. (Yes, I did, and I got the offer, but ended up later declining it since I wanted to do a PhD.)
But that shows that clearly the previous 10 times my resume went nowhere.
In most tech companies any employee reasonably high up on the ladder can more or less whisk you into the interview process if they know you or your work and it's strong. Whether or not you get the job depends on the interview, but you'll at least almost surely get the interview. Multiple merged PRs on an open source project by that company is a near 100% ticket to the interview. Don't underestimate the power of knowing people, even if you are an amazing coder.