I tripped into the K-pop rabbit hole in late 2018, right around IZ*ONE's debut and fortunately or unfortunately, I'm still very much stuck in the hole. Lots of people would agree with the statement that 2018 was 3rd Gen's general peak, churning out a number of would-be 3rd Gen classics that's been generously summarized in this video:
2019 marked the emergence of 4th Gen frontrunners such as TXT and ITZY (While typing this, I was reminded of the amazing times when debunking the Beomgyu-Ryujin ship with reasons being one's a twink and one's a hey mama being all there was in life). Unfortunately, you can also say that this year was also the 3rd Gen's general last hurrah with 2020 setting the rise of the 4th Gen in stone although the bigger acts have remained well-established to this day and you can see some of the older acts persisting such as in Brave Girls's Indian summer in 2021.
I also noticed that in general I've been liking the newer trends that the 4th Gen brought be it in the musical quality or concepts. Back in 2018, comparing idol's skills was PEAKING with every viral K-tube videos hinting at the supremacy of an idol's popping skills to a rivaling idol's (unfortunately, this meant that novices were also taking a go at this trend which meant murky waters and the most horrid of fanwars) and even in this forum, there was always a "Wendy vs. Solar: BETTER VOCALIST?" waiting to be the witness of complete noobs regurgitating something a pRoFeSsIoNaL vocalist on YouTube said. Regardless, a part of me is glad that that tradition seems to have slid down the ranking of importance in K-pop fans.
Another part of me, however, misses the more "friendly" feel that 3rd Gen K-pop at its best provided. Most of the current 4th Gen seems to be more industrial concept perfection than its predecessors and while my current self does prefer that, the 2018 me that I have since archived would gladly drop to the floor for a good round of What is Love - DTNA - Yes or Yes.
Anyways, don't mind me, I'm just nostalgic at the feeling of pure elation when oh my mistake came on