My friend is having issues opening web URLs in apps on macOS 15.0.1 (24A348). In the system settings, the default web browser is DuckduckGo (he hasn't manually set DuckduckGo as the system default web browser), but when he clicks on any URL in other apps, it opens in Safari instead of DuckduckGo.
So we want to know: Is this is a bug for macOS 15? Maybe the actual default web browser is different from what is shown in the system settings? Is DuckduckGo automatically changing the default web browser in the background, but not actually working?
One more thing: The DuckduckGo was downloaded from Mac App Store, the bundle identifier is com.duckduckgo.mobile.ios.vpn.agent. Below is the link of recorded video: https://pan.baidu.com/s/1nNglYzVUL8Xw4RDNG-Dyrg?pwd=256e