Why haven't cellphones developed duress PIN's like Coldcard?

For anybody that doesn't know, a duress PIN is a PIN that opens your hard wallet and leads to a real bitcoin address. On this address you can keep a small amount of Bitcoin. It's for plausible deniability. It protects against a wrench attack, and it protects against the legal system if authorities or a court try compelling you to open it or face contempt of court and other charges. There's no way whatsoever to tell if the duress PIN opens the gates to your real wallet, or if it's a decoy. It's extremely effective. So why haven't iPhone's or Samsung phones carried this feature? Those things can give people access to your bitcoin exchanges, your email, private pictures, etc. In some telling, they already operate like hard wallets for many people who use non-custodial apps. How many times have we heard of a wrench where the phone victim has to open it? Or how many times have we heard of courts demanding such? Is their an app that allows for this or do I sound like a crazy person?

It just seems Coldcard is leading the charge with this type of thing. Their Seed XOR feature provides plausible deniability in a unique way with seed storage, and it's rumored they're working on some wild new security feature enabled by Taproot on their Mk4 Coldcard for next year.