Ah. That is indeed irritating, but at least it's easily fixed once you know about it, even if it shouldn't have to be. Even when you know it needs to be done, it's very cumbersome to go through every single app, separately toggling off Siri (and, I guess, now Apple Intelligence? I don't know if that's another toggle). Fortunately this process seems to be "sticky" across updates, which is a win, but it still isn't something I should have to do for tons of apps at start, and then for every app I ever install after.