It was unquestionably better in my opinion. Yes, there have been a lot of recent enhancements that I am grateful for and would not want to lose, such as Rise of the Resistance, and lots of improved infrastructure and streamlining and whatnot. But aside from additions and growth, nearly every category has declined other than perhaps food quality, which has improved significantly.
Ignoring things like the fact that service and upkeep are nowhere near what they used to be, crowds are bigger, more pre-planning and hassle is required, crowds are bigger, you're paying a lot more for less now and being nickel and dimed, etc...
The single biggest difference that is gradually killing my lifelong enthusiasm for me is the ever-growing push for corporate synergy. For the first 30-35-ish years, the WDW experience was largely NOT about constantly being bombarded by the Disney brand. Yes, it's always been prominent, but you went to WDW before because it was a high quality experience and escape at what were originally relatively reasonable prices. You'd meet the characters and there were some IP attractions, but more attractions than not were non-IP based and if they were, it didn't feel like Disney trying to market to you. It felt like a place that didn't need the Disney brand to exist because it was so impressive, cohesive, high quality, and unique that it would be a draw on its own.
My first visit was as a 9 year old in 1994. Even at that age, I remember being apprehensive about going because the perception many people had back then was that WDW was for small children only, corporate tackiness, and all about hugging the characters and rides like the teacups and dumbo. I was already in a state of mind to not want that. Then, to my surprise, we get there and you could largely ignore the character stuff if you wanted to. I distinctly remember feeling like this place was family friendly but "mature", it wasn't pandering to me or kids smaller than me. I was in total awe that a perfect, massive scale place like this seemed like it shouldn't exist, but did. I became a lifelong fan after that.
Now I know that not everyone agrees and many think that the Disney branding is an integral part of the WDW experience. But the difference is that before it could largely be kept in the background if you weren't as interested in it. Since the early to mid 00's they've continued to dial up the IP and corporate synergy. Now, with Chapek, it's reaching the absurd levels that 10 years ago we would have joked about as hyperbolic examples. The irony is that WDW today is so much more like what naysayers assumed it was like all along - being marketed to and bombarded by the Disney brand at every possible opportunity.