Frankly, I don't have much time to contribute to open source these days. I send a PR maybe once a year.
Almost everything on my profile is from my university days, and none of it is related to my career specialty (ML SRE).
And my employer asks me to fill out a form before I publish personal projects, so that they can be sure it is unrelated to my job (and thus that they do not have a patent or copyright claim over the code). This means most of my weekend projects simply aren't public, because I can't be bothered to do the paperwork.
LinkedIn, on the other hand, clearly shows where I've worked and what I've worked on. It's a much more accurate resume for me that GitHub.