Interactive dismissal aka. "Swipe down to dismiss" changed to "Tap to dismiss" in iOS 13.5?

We receive feedback from clients that are able to dismiss modal views by just tapping outside in iOS 13.5 and 13.5.1. Until iOS 13.5 it was ONLY possible by swiping modal down.

Application has been built with XCode 10.2.1 so it was not compiled with iOS 13 SDK. Is it possible that behavior changed with a new runtime release?

We have already incorporated new SDK and made all adjustments needed. Only that some clients will not upgrade yet and are asking for a patch release (for the previous version), which is tricky because there are more things to do than just adjust isModalInPresentation to make UI look good in our case. I assume for enterprise release, we can do it with XCode 10.2.1, but for AppStore, starting July, we have to use XCode 11+. Any advice?
Is your case when you segued in Automatic mode ? In that case, where does use tap ? There is very limited space outside the view. I tested in 13.6 simulator, it is not possible to dismiss other than with swipe down.

So is is probably another use case. Can you describe exactly ?
We do not use storyboards/xibs so there are no segues. Some modal views have manual fixed content size set (via preferredContentSize) and it is definitely possible to tap outside of view.
Interactive dismissal aka. "Swipe down to dismiss" changed to "Tap to dismiss" in iOS 13.5?
 
 
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