This is sound advice, it’s harder cause people don’t know how to sell themselves, traditional college gives you all the resources to sell yourself.One thing to keep in mind in this comparison is that just by being in college pursuing a CS/related degree, you're able to apply for (paying) internships with companies. Some companies will offer you a full time position once you've finished your degree if they like you enough during your internship. There's internships out there that are open to people who aren't pursuing CS degrees, but they're few and far between.
My recommendation to anyone is if you're interested in a career in tech and college is an option for you, go for your bachelor's in CS. It's not impossible to get your foot in the door without it, but it's a lot harder and will require more grinding on your part. Doubly so if you don't have a bachelor's degree at all.
On the flip side, Everybody that went to college knows MULTIPLE people that didn’t land a job when they graduated or never landed a job in tech. Majority of these people just passed their classes and did nothing else, no networking, no tech clubs, no career center, no internships, no TA or study hall positions. It’s the same thing