I subjected to the prequels again a couple of years ago (first time I watch episode III trough the end, actually: I stopped midway trough with disgust when they broadcasted it back then) and well...they are a lot worse than what I remembered!
Yeah, my wife and I attempted a rewatch last year. She made it through-I did not. My emotions around them have not largely changed since I was a teen. There are parts I like and there are many that I just don't find appealing.
as many, I didn’t enjoy much the new trilogy, yet I’m loving the mandalorian, which seem to be a very common situation...still it’s something new and daring for a Star Wars product, so perhaps it’s not just “hating the new thing”.
Here's my thing, accurate or not. One, I think it is more than just hating the new thing, though I think that is part of it. I think it also not fulfilling what preconceived notions fans have around a particular property. The Mandalorian is trading heavily in the tropes that made SW Star Wars, i.e. westerns, serialized movies. Combine that with the scoundrel with a heart of gold trope and it's pretty much the OT except with Han Solo as the lead character, not Luke. I don't think it is that daring. It fits in to the SW box quite comfortably for many.
Discovery and the ST don't. Neither did TPM. Sam Witwer, whom I have a great respect for, noted that TPM was the first of a story type that allowed expansion of that universe. Before that, stories largely were confided to conflict between the Rebels and the Empire, either a remnant, or former ally of the Imperials. TPM showed that it was possible to tell a more political type story. It might not have been well received but it was different enough.
The ST was also different enough, though it tried to do both, by playing it safe and being different. And I think the fact that it's a subject of disagreement indicates that there is still variety in terms of opinions and reception. But, unlike the PT, the ST went against preconceived notions of the SW box with these characters. That is going to rub people the wrong way. Are there legitimate criticism? Yes, but I think it also struck nerves because "Luke shouldn't be treated this way!" type arguments. And I think that holds weight because of just how much stock people go with the Mandalorian.
Discovery is in a similar boat. It isn't doing the ensemble piece that people expect (and demand at some points). It is not following the rules of Star Trek of showing less conflict, having technology be a benefit, etc. Again, there are legitimate criticisms, but when I hear some things repeated it makes me pause and go maybe it's just more different than people want..
tl: dr-No, it's not just that it's the new thing. It's also that it is the different thing.