As both a Mac user when I had the choice and Windows user when required by employers, and always iphones, I have always had Siri totally turned off. Take away the voice recognition and it's underlying functional equivalent at Microsoft included Clippy and Cortana, which have been even worse, and both are dead. All of them are annoying.
Folks who think Siri is falling behined seem to be confused about that purpose of Siri. It was never meant to be a LLM and never will. At best it will be a Small Language Model (SLM) focused on intra-Apple environment and an interface to LLMs similar to how it's an interface to search engines today.
Folks also seem to think AI = LLM. Ultimately, LLM will be a tiny fraction of AI.