i can't remember if this was discussed in the actual show, but something interesting i learned from the origins manga is that guntank was a prototype of guncannon, and guncannon led to the development of the rx-78-2. wasn't simultaneous.
hayato also was wary of amuro's father and the screwy behaviour of the earthfeds on side 7. also it was obscured in the show but in the origins manga locations are explicitly mentioned, like garma has a base in fucking hollywood. also new yark = new york.
something i need to check out is the first episode and compare it to the manga, because i thought amuro was screwing around on the computer, and he was struggling with the manual while combatting the zakus. in the manga he hacked into his dads research about the rx-78-2 and he had no manual and combatting the zakus was kind of by memory.

go ahead and laugh at me since i haven't watched the anime in ages and i might get things wrong. also i'm personally going to watch stuff soon in chronological order, its a bucket list thing. also i missed out on watching zz and zeta gundam with you guys and i have been itching to watch them ever since.
now i will talk about the trilogy movies. on one hand an effort was made to have it conform to the real robot genre, which is great. no more g-part upgrade nonsense which was personally fucking tiresome to watch. on the other hand things got cut which in my opinion is retarded like why remove the black tri-stars? why cut doans island? if the quality was so fucking bad why not cut all the other sequences that sometimes had more low quality then the two abformentioned episodes? i could be wrong with this but also it felt like it was a freak of the week situation wih zeon's mobile suit, that they came up with stuff to combat the rx-78-2 instead of being pre existing weapons of war, most of them don't make a second appearance. only later in other shows they show previously introduced mobile suits in battle. also something that came to mind recently lol was the similarities of gundam and battlestar galactica. both are kind of survival stories of a rag tag group vs an oppresive force, they both have space magic by the evolution of mankind in space leading to psionic powers, also there is a civilian class in thd lower decks who are taking refuge and are a pain in the ass. commander cains outfit reminds me of chars uniform, but the similarities stop there.