WeChat Passkey using Chrome instead of iCloud

Recently I found WeChat updated an feature to add Passkey to login, but it limited to iOS's own feature instead of things like Yubikey.

I always using Google Password Manager instead of iCloud "AutoFill and Passwords".

And i have set the default Application to Google Chrome Password Manager and Google Authenticator.

I want to know is there any way to add this key into Google instead of iCloud.

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I mean, does iOS or WeChat itself limited it to using iCloud only or provides an API to let Applications add itself to handler.

If the first one, then the anwser is no.

If the second one, then even it does not support now, we can submit an issue to Chromium Issue Tracker.