It's all the AI bloat for me. It keeps getting shoved in my face and they _really_ want me to use it. But I neither want nor need it. The product itself was so good that it doesn't need this whole guessing-machine-layer on top of it.
I also agree that the nav, structure, and defaults changing keep being un-intuitive and are making it harder to find the things that I use and that matter to me and my orgs.