Sure, if you trust Bitwarden but not Apple, you can, as I had assumed was obvious, use Bitwarden's Passkeys and not Apple's.
Personally I would rather have Security Keys, and there are going to be plenty of people like me. Yes, if you need a physical object as an authentication token you will sometimes need to have that object with you, I also thought that went without saying, but it's true in case it wasn't obvious.
Signing up for new accounts which deserve a separate meaningful identity (like a bank account, or a Youtuber's account, or GitHub maybe) is not a common occurrence, in the time since I last got a new Security Key I have added let's see, zero new accounts, so I had to add that key to all the existing accounts, at work and outside, then nothing.
Personally I would rather have Security Keys, and there are going to be plenty of people like me. Yes, if you need a physical object as an authentication token you will sometimes need to have that object with you, I also thought that went without saying, but it's true in case it wasn't obvious.
Signing up for new accounts which deserve a separate meaningful identity (like a bank account, or a Youtuber's account, or GitHub maybe) is not a common occurrence, in the time since I last got a new Security Key I have added let's see, zero new accounts, so I had to add that key to all the existing accounts, at work and outside, then nothing.