I think the late 2010s-onwards are going to be characterized by oversocialization in all spheres of life, and an persistent erosion of privacy.
The 90s was the last era before widespread internet penetration and digitization, and IMO is a transitional decade between the 80s and 2000s as the digitalization of society became widespread.
The late 90s and early 2000s felt like an exciting time- Web 1.0 was blossoming, and the internet felt like a wide open and unexplored space. Games were more unpolished, but the modern tropes hadn't been completely defined yet. If you shared something, the amount you could share was still relatively limited- making it more exciting to discover.
The late 2000s and early 2010s were an age when the internet felt like it was maturing and becoming more polished- but it was exciting to be able to share things much more easily with the birth of social media. Games became increasingly polished, and IMO, lost a bit of their magic as you no longer needed to use your mind to fill in the gaps as much.
Nowadays, it seems like everyone's on a constant drip of dopamine, and there's just no magic or hidden treasure to be found, as everything will be recorded and easily accessible to everyone- the "frontier" has disappeared, so to speak. Sharing everything all the time means that politics inevitably gets injected in, and the entire space became tribalized, critical, and self-segregated- the wide open spaces of the internet have become much smaller.
Also, like what a lot of people were saying before, the fact that America's image has also eroded since then (with off-shoring & the erosion of the middle-class, the wars, & fentanyl) probably also contributes to that feeling of a lost age. Some of these things were decades in the making from the end of the Cold War, but only really became noticeable in the last few years or so.
It truly was a better time. SJW cancer had not yet formulated, so the internet was actually a free land of the shitpostings, before they came.
IMO it was there all along, metasizing outside of popular culture in academia and activist circles- and finally appeared with the rise of social media (which presents the false image that every opinion is equally valued). This probably created a feedback loop that was amplified by mass media, resulting in the dismal cultural landscape today.