I have another thing
When people say "OMG THEIR COMING THROUGH FOR US 90s BABIES OMGGG" or "ONLY 90s KIDS WILL REMEMBER THESE!" or "THE 90s WERE SO MUCH BETTER THE BEST THING EVER!"
Whatever is being made that apparently comes through for 90s people, most likely doesn't just apply to them but is also trying to bring in a new audience. There can also be people who became fans after the thing was originally made. When the Lego Movie was announced someone said that stupid sentence. Y'know Lego still exists, and it's pretty big, in fact, it's bigger than it was in the nineties right now. Lego didn't say "OH LETS MAKE A LEGO MOVIE FOR 90S KIDS!" It existed before the nineties too. But they made a movie because business was booming or they felt like it or something. Definitely not solely because the nineties.
People who are not from the 90s may have heard of the thing and they remember it, or it was something big outside of the 90s. For example: the dreaded slap bracelets. Some dude said that only 90s kids would remember them, yet when I was young they were pretty big (and it clearly wasn't the nineties).
The 90s were probably better, but not the greatest thing ever. I moreover preferred the time period between 1999-2015. But don't regard some random age as the best thing to ever exist.