Interesting. Did you go to an Ivy league, cause I went to a state school and I haven't used networking for anything ever. Granted, I've only worked at GAFAM and they hire tons of people so that could be part of it.
I went to a state school, and my entire professional career is due to the friends I made there. College was a very rough time for me, and I wasn't getting many interviews with my resume (really poor GPA, no internships, no extracurriculars, etc). A friend hooked me up with a job at a startup and landing interviews since has been no problem.
This isn't a glamorous story where my network made me a millionaire, but my life would be much worse having not made those friends back then.
Internships definitely help (GAFAM uses them like extended interviews for full time offers). I also think it helps that my gpa was ok (3.05) and the school i went to (purdue) was highly ranked enough and big enough that we had entire recruiting teams come out to our career fairs which is where I got my first internship. Some companies even sent out employees for an entire week to our campus to do interviews for internship and new grad hiring.
I went to a state school, albeit R1 which has a lot more funding and therefore opportunities, but I believe every state flagship is R1 anyway. Actually this in state school was cheaper than some other in state schools that were considered party schools/easier academically. Were you recruited at a career fair? fangs always had a big presence at our biannual fairs and people I knew seemed to have no issues finding internships coast to coast.
I went to purdue so we had absolutely massive career fairs and I got my first CS internship at GAFAM through one. After that, it hasn't been hard getting interviews at the other ones.
