For me, at this time, all of the models work significantly better with quite a bit of context. In Perplexity that context is provided in Spaces. Spaces include reference material and the model/prompt settings for the Space.
The great mass of people are not going to do that sort of context work. So vendors are trying to answer questions and apply (lower cost) models without context. Meanwhile they try to scrape together a lot of knowledge about the user from whatever source they get.
Apple's opportunity is they can assemble a lot of context. In my case GBs of information on my main drive, not to mention my calendars, contacts, notes and so on. Apple could ask questions to provide a general default context, such as preference for sycophancy, references to use, web resources, textbooks and so on.
I consider Apple to be a broken company. I don't think they will be able to get their ai act together under Cook. But if they can, they do have advantages.