vkt I think you may still be misunderstanding what 'iCloud Keychain' is.
Keychain is just a fancy name for special type of secure storage provided by OS, used most commonly for storing data like passwords and certificates. This storage can be used by apps, and each app gets its own bucket in storage, and apps can not directly access each other storage in Keychain , but can through special APIs provided by Apple like the auto-fiill API which is currently available and developed to a differnent standard on iOS and macOS.
iCloud Keychain is just Keychain synced over your iCloud account to other devices.
Saying passwords are saved in 'iCloud Keychain" is meaningles unless you specify in which app's bucket in keychain they are saved in. I think you equate Safari passwords with 'icloud keychain passwords', just because you may not have used any other app before that natively uses keychain, like Orion does (for example other browsers like chrome and firefox do not use keychain on macos, they use their own propriatery storage on their servers).
Your (iCloud) Keychain now contains two buckets - Safari passwords and Orion passwords. If you also use a native password manager like Strongbox, you would also have Strongbox passwords in Keychain. 3rd party provider option in Orion specifies you do not want to use Orion's keychain passwords, but passwords stored in some other app's keychain, that integrated the native auto-fill feature.
With this in mind, can you rephrase your question/ask?