Don't get me wrong, I think consciousness arising from sufficient complexity is also very much a possible answer, and I don't discount it. I'm just not totally convinced that there isn't more too it. Until a general AI arises, I don't think I will be convinced, and even if it did, who's to say it inst still just an approximation? Multiple AI intelligence domains slapped together with some approximation of a pre-frontal cortex. Even then, biology may still be something entirely different.
Sure, you start venturing into the supernatural realm talking about this, but who's to say that given sufficient time and study of this phenomena, the supposed "consciousness is everywhere" becomes the new natural science, and gives rise to new technologies we couldn't even conceive. It would be like discovering Electromagnetism all over again.
Then again, the last time I checked we don't actually know if time is quantized or not, or if that's even a meaningful question.
A slightly modified version of this idea is explored in https://existentialcomics.com/comic/1
Still, I find it at least as likely as the "consciousness just sort of happens when information processing gets complex enough" explanation.
You might find this interesting https://www.quantamagazine.org/a-new-spin-on-the-quantum-bra...