My lineage uses a stance with feet parallel. The knees come in slightly, but they are not pulled or forced in. The stance should be reasonably comfortable, hanging together on the tendons rather than flexed muscles, though complete relaxation is of course impossible.
I quite often see beginners trying to force the stance really low or really wide in the form, which IMO is a mistake - "make your everyday stance your fighting stance, and your fighting stance your everyday stance" - M. Mushashi (it might have been the other way around)
I'm using spine and hip alignment, - or the seven bows, if that's what floats your boat - to deal with incoming force in this stance.
TBH, if I'm trying to absorb or deliver significant force, I'll be doing it from a 50/50 front stance, not YGKYM. A bit of wrestling work will be good as anything to help you learn to absorb or apply force IMO.