I believe this issue extends beyond the scope of those without CS degrees; it also affects developers who have spent time working at small startups that haven't significantly scaled. If you haven't had the opportunity to work on large-scale projects, you might lack impressive accomplishments or credentials to showcase. This issue can compound over time, leaving you stuck in positions that are less rewarding than even mediocre jobs, regardless of your true capabilities or the quality of your work.
Some people say that you can build open source projects or build products to show what you have. Balancing such efforts with a full-time job can be challenging, as these undertakings can consume most, if not all, of your free time. This creates a vicious cycle where you're continuously overextending yourself just to prove your worth. It's a demanding situation that can impact both your professional and personal life.