I've implemented Password AutoFill for our webpage. It's working fine in safari browser and SFSafariViewController
Safari browser
Same way, in our mobile app, we are using a web-based login page. For the login, we are using WKWebView, but in WKWebView the popup is not showing, instead, it’s showing the normal keyboard.
WKWebView - App
Already configured Associated Domains under Capability. webcredentials:prod.auth.TestDomain.org