I'm not a developer, but I can certainly understand your position. It's unfortunate that companies rely on this type of company to decide if someone is worth hiring. There's a need for companies to have streamlines that look at the actual capabilities and values of potential hires, regardless of where the evidences are hosted.

This world is way too broken, and getting worse every day.

It is laughably easy to fake those green squares that for a while, ages ago, I had some commit counts like 14000 or so... every single day.

There are so many tools to also fake human like commit counts for those pretty green squares that if I came to know of my senior engineers hiring on that basis, their estimation as interviewers in my eyes would take a nosedive.