This is basically how I feel about the vast majority of Gundam spin-offs and alternate timelines. Some spin-offs try harder than others to adhere to Gundam values or to do their own thing. But so much of the franchise is basically just nostalgia for nostalgia's sake, and focused like a laser on only the male, plamo-buying demographic that it is honestly just kinda depressing to contemplate. Even the good spin-offs/side-stories like 08th MS Team or Thunderbolt are still just intensely only concerned with the straight male perspective.That is what Stardust Memory feels like, as it has the highest production values of probably any Gundam property in existence, all the shine and pedigree to make a grand show of itself... and it doesn't feel like it has anything to say about anything that happens over the course of its story, appearing completely devoid of meaning on some inherent level that hasn't occurred before in the franchise.
0083 was my very first Gundam, and I loved it because 1) I was a tween adolescent and liked it on mostly superficial levels (Wow, cool robot!), and 2) I only had access to the first couple VHS tapes, and it took almost a decade until I was able to watch the rest of the show. These days I see it as being fairly problematic and devoid of substance, but it sure is a pretty show to look at. But as you say Peklo, it's very much a case of wouldn't it have been nice to have seen these resources go towards making something better?
0083 is an interesting "what if" scenario. Because (if memory serves, someone please correct me if I'm wrong) the show's original director (maybe it was the head writer?) died halfway through the run of the OVA and had to be replaced. And most deep-in-the-weeds fans will point to that directorial shift as where the show became aggressively bad in most aspects. The director that ended up taking over, eventually got fired from Sunrise for showing up to a screening with executives blisteringly drunk.
I get the feeling that G Gundam probably won't be a favorite of yours Peklo, or if it is, it'll be in spite of the gender dynamics. G Gundam is better than some others, but it's still overwhelmingly concerned with being a macho show for macho boys. (It has some good lessons for macho boys to not be so toxic, imo. But it's still probably an alienating experience if you're not up for its brand of machismo.)
MB, have you ever seen Gundam X? It's one of the most forgotten corners of the franchise, but I feel like it's got more going for it than most spin-offs and tries its hardest to embody what Gundam is in its totality versus most spinoffs.