> Setting your preferred password/passkey manager on Android 17

Which approximately no one is using yet. Maybe in two weeks, when the new Samsung flagships roll out, to two months, when they start updating current generation devices...

> to 1Password works fine in Chrome and Firefox to log in to any site, presenting passkeys managed in 1Password.

Perhaps. But does it work with System Web UI, which I imagine is Chrome but have no clue how it's accessed?