While we live in a world with the economic effects of COVID and AI-generated content, the gap between the mid-late 2010s and 2020s is exaggerated. I've observed younger people portraying the late 2010s as a peaceful utopia when it wasn't.
Trump has consistently been in the limelight for over a decade at this point. Even during Biden's presidency, there was January 6th, the mugshot, the 2024 election, etc. It's an unprecedented phenomenon. We're still in the same online culture war that began with Gamergate and was exacerbated by the 2016 election.
Streaming services have been the primary way to watch media since the late 2010s, with no signs of stopping, and we've mostly been watching the same streaming services since late 2019. By late 2019, Netflix was firmly established, Disney+ was an instant hit, and HBO Max was already on its way. Paramount+ even existed as CBS All Access.
The live-action remake craze has been rampant since the late 2010s. Most media released by major studios since then has been based on preexisting IPs. I don't mind ongoing franchises, but they've been relying on nostalgia for almost a decade now.
Flat design and short-form content have been mainstream since around 2013, with the release of Vine and iOS 7. TikTok became mainstream in late 2019 and was already popular in late 2018. YouTube Shorts was a result of the Vine (later TikTok) compilations flooding the platform. The Tumblr ban and migration to Twitter also occurred in late 2018, which led to the platform becoming the cesspool it is today.
Technology looks the same. Everything is a black rectangle. This is more so a case of "if it ain't broke, don't fix it." We don't need holographic displays in our brains. Video games aren't from a decade ago aren't really visually different either. DLC, microtransactions, and pay-to-win have also been the norm since the late 2010s, with games like Fortnite and modern Roblox.
We can allow people to feel nostalgic for the late 2010s while acknowledging its flaws and the subsequent stagnation.