Due to the requests for Universal links from Google / Apple for our Android and iOS apps. We want to offer users seamless experience.

https://developer.android.com/training/app-links/verify-site-associations

https://developer.apple.com/documentation/safariservices/supporting_associated_domains?language=objc

Unfortunately, WebFlow seems not to have the function which can let us customize. Which is definitely a shame also the possibility that we need to give up WebFlow.