By showing that almost no recruiter check the GitHub repos cannot tell if such contributions make a candidate stand out. If someone has tangible contributions

By showing that almost no recruiter check the GitHub repos cannot tell if such contributions make a candidate stand out. If someone has tangible contributions through GitHub, they probably write that down in the resume. The interviewers may check their claims either during interview or on GitHub before/after the interview. The problem is that if a candidate performs moderately well in the interview (e.g. coding interview), while he/she has made many contributions through GitHub, should the interviewer recommend the candidate? My belief is that most interviewers will not take the risk or take the responsibility for a potentially wrong hire.