@awful_gollum will disagree with you on Toy Story and A Bug’s Life CGI. Those still look really good, and I just rewatched them on a 80 inch 4K TV. Can’t speak on Antz.
One could argue that Pixar had a bigger budget and better technology than MainFrame ever did. As much as I love BW, I will admit that it looks like something from a 5th gen video game. At least with the first season. Kingdom is the closest we'll ever get to an HD remake of BW.
Yeah this. Nearly are cartoons are a product of their time and culture at thy specific moment, and I’ve found returning to them as an adult never quite works. There are very few things I watched when I was a kid I can go back to, the big exception being the two Charlie Brown holiday specials (Great Pumpkin and Christmas). Those are timeless. I’d say the true test of whether something has stood the test of time is whether my kids will watch it. And that list is vanishingly small too. Prime is really good. I get people didn’t get what they were expecting with that show. It blew up the aligned continuity. It really didn’t tie in with the Bay movies, the popular video games, or comics despite being portrayed as being part of that continuity. But what it did do it did amazingly well. Knock Out, Breakdown, Bulkhead, and Wheeljack from Prime are some of my all time favorite transformers characters and I’ve been around here since G1. And the Prime version of Optimus is one of my favorite takes on him. I really wish we’d gotten a Prime take on Thundercracker and Springer.
Going back to shows like Beast Wars and the likes never bothers me much for visuals, but mainly because I like history in general, so that part of me is already set to analyze and appreciate animation within the timeframe it's created (including the size and limits of it's budget). Personally, while I like both Animated and Prime, I'm more of a Prime fan myself. Just a lot more aspects of that show appeal to my tastes than Animated does, probably the same things that appeal a lot more to Animated fans over Prime, an Apples and Oranges type-deal.