It wouldn't have become so popular if it is the slow kind of grindy chores you talk about, in general the most popular such games has a lot of things to make it not feel like a chore because most people don't like chores.
But a game reviewer can't really pick what they play, they have to play new shitty games that will never be popular all the time and then I can see how you start to associate these things with chores.
That being said, I'm not into pokemon-like games anymore, I suspect the automated battles are not my thing anymore, the fights are too dull and don't endanger you
Arks niche at the time was taming dinosaurs, today that isn't anything special but Palworld take that concept and makes everything much better about it and around it. Other than dinosaurs that Ark is the worst survival game I've ever played, but the dinosaurs is what makes that game tick, and you don't have to spend much time on other aspects of the game.
Not sure I'm interested in the factory aspect though, I feel Factorio and Dyson Sphere Program already excel at that
So the main gameplay loop there is you have tasks you want done, you go out and search for and catch monsters that can do those tasks and then build out more and more. You don't have to do a lot of focused thinking like in those factory design games, such games takes too much effort to be as popular as palworld.
Yes most mmos and survival games are terrible at this, I'll never forget one of the quests in world of warcraft as a high level death knight "go gather wolves poop": I just defeated an enormous beast and saved a town, now I gather poop?
Checkpoints and story, give me that.
Or even better, give me a well designed gameplay loop, then gathering resources won't feel like a chore.
Automated resource gathering doesn't count, I'm fine if I'm not actively gathering: dyson sphere program is a great game.
For what is woth, I consider most open game terrible. Exceptions have farming items as secondary, not primary (e.g. Elden ring)