While there's some promising research on peri-workout nutrition, a lot of what's out there is just bro-science that's not backed up by a whole lot of actual research (IE the whole 1-2 hour anabolic window). The bottom line is that the most important factor regarding meal timing and nutrient partitioning is you and of far greater importance than "perfect" timing is making sure you feel ready to do your work out and your ability to get all your nutrients in.
Makes sense. Is it safe to say that the sole indicator of "getting all nutrients in" is the ability to keep intensity as high with respect to previous sessions? (previous being those where I could afford the time to eat bigger meals and let them digest)
Your own biofeedback is your best measure. If you feel like you're able to perform up to your usual standard (or better!) then that's the right thing to do. If not, try it every which way you can think of and do what feels best. If you work best with a carb heavy breakfast, just adjust the rest of your day accordingly.
Personally, outside of sweet life-giving coffee, peri-workout nutrition has limited effect on my work capacity. I'm better off having a light breakfast and getting extra sleep than getting up without adequate rest but having a packed breakfast. But I have the luxury of making my own hours, so I get to do my workout when I'm feeling my best so YMMV.