The only problem with disabling Siri is then you you don't have the service. I depend on Siri, to let me know when
laundry is done, when I have to leave for an appointment, to wake me on the mornings I have to wake early, to make a phone call when I am working with my hands, etc.
I find the new Siri is not as good as the iPhone 11 version at finding information. Sometimes I used to ask her to find out how long the local specialty market would be open and she just can't do it no matter how I pose the question. So, I no longer ask her for anything like that. I posted the original complaint and since there are now three pages of responses. Most agree with me. Why haven't I posted to apple where they might actually see it? Because I no longer think that they or any mega company cares what I want. They don't need me and they know it.