My Saturday morning years weren’t much different that yours and I absolutely disagree with your assertion that the shows were good One of the very few things from that era that I feel nostalgic for is School House Rock. The late 70s was when Hanna-Barbera, Filmation, and Ruby-Spears were in a race to the bottom to produce cartoons the quickest and the cheapest. Every other show was a knockoff of Scooby-Doo (Speed Buggy, Jabberjaw, Goober & the Ghost Chasers, Clue Club, etc ad nauseam).
The early 80s were basically Smurfs, Smurfs, and a bunch of Smurfs knockoffs (Snorks, Wuzzles, Monchichis, Getalong Gang, etc) filled with positive pro-social messaging saccharine enough to cause an insulin coma. There were also a lot of shows based on video games, of all things. (What was that about shows not being based on toys until Reagan ruined everything?)
BTW, stuff like GI Joe and Transformers were not Saturday morning shows at all. They were independent syndicated shows usual shown after school on weekdays.
Here’s some early 80s cartoons. I sure you they were not very good.