People in this forum are curmudgeonly and love to complain. I used to do that too. CK3 is a very flawed game. At times it frustrates me because I think I can see all the ways it could have been so much better; at times I get bored with it. But life's enough of a grind these days that I really don't feel like wasting it getting upset about a video game.
End of the day, I still have fun with every now and then; I have more playtime in CK2 and CK3 than any other games because clunky as they are, they offer a unique experience I can't get anywhere else. When I'm not having fun, I set the game aside unless and until I feel like playing again, and I do other stuff with my free time.
I'm actually pretty excited about Chapter IV, cause East Asian history's the only one I enjoy as much as European. I've taught the Mongols in a couple survey courses too, so I know enough to want a distinct nomad experience, and the dev diaries so far look promising, much more so than the extremely janky nomadic government in CK2.
Hopefully we get a Turkic flavor pack eventually. But I doubt CK3 development will last long enough for the entire map to be covered, so something's bound to be left out, and someone bound to be disappointed. I'm still bummed out post-Viking Age Scandinavia got nothing in Northern Lords and that it probably never will.