That’s why I went to uni to do EE/Robotics. I wanted the next step, suffice to say I did not get the next step from university.
I see what you’re getting at though. Just in time learning seems to be the way it will be. It’s just frustrating I don’t even have a base to go off of. Pretty much all my background knowledge has come from stuff I learnt outside of uni.
If your base doesn't help you launch, even in a small way, then you need to go below that base, back towards the fundamentals. I'm sure you learnt about logic gates, digital signals, transmission line effects, power glitches, etc. Unless you went to one of the well funded universities with youngish academics, then what you learnt was probably 5+ years behind the current state of the art. Add to that the years since you graduated. That is the knowledge gap in years that you need to traverse to establish an up to date base.
Until recently, I taught post-grad EE/SE (as an ex-industry, adjunct) at one of the country's top universities. My colleagues were dismayed at the inadequacy of STEM education of the first-year students. Year 1 has become a remedial school. Starting from such a low-level of knowledge 2-3 years doesn't provide enough time to teach all that is required to be successful in industry. In the field of digital electronics you typically need 3+ years of industry experience to become competent. Of course, motivated autodidacts can accomplish far more in far less time.