I get you OP. I had the same problem with open worlds, but it wasn't open world fatigue per se, but rather "bad open world fatigue". I loved Witcher 3 story, but I'm gonna be honest, the open-world aspect was just extremely bad. Same with Assassin's Creed games, Horizon Zero Dawn, Mad Max, Watch Dogs 2 etc. These are not bad games, but in my honest opinion their open worlds are, well, shit. Some of them look amazing, but the content is dreadful - hundreds of question marks, some lame enemy camps to make it feel like there's something going on in world and bunch of delivery side quests. Like you said, most of the time it was a chore to do stuff in them and it just wasn't fun. And it's just some kind of flawed world design choice that made it in the game industry and it's getting replicated over and over again. What helped me from hating open-world games was Breath of The Wild, there's something about it that makes it so fun - traveling through it is fun, there's lots of cool interactions and hidden things - korok seeds with little puzzles to do, lots of cool places that make you go "I wonder if that weird looking hill has something on it" and then it turns out there was something, lots of places that required some thinking in order to get to them. I thought it was genius and fun as hell and it wasn't oversaturated with content, it was just right. So far, Breath of The Wild is my ideal open-world and I hope more games will try to be ingenious instead of artificially packed with shit. So far the only game that was promising in terms of all that was surprisingly Days Gone and Death Stranding to some extent (imagine if BT territories were actually dynamic. They were changing a little bit sometimes I think, but mostly it was always the same locations). They both had some shortcoming, but i'm honestly expecting something even greater from Bend studio next time and from Kojima. So yeah, I can relate a bit, but at least I have my save space with BotW and hope thanks to Days Gone and Death Stranding