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

OS macOS 15.4.1 What steps will reproduce the problem? (0) Make sure you have other third-party browsers on your computer, and that their names start with a letter before "M", for me it is Arc browser. (1) Install a previous version of Edge Mac Canary (it can be downloaded from official web site:https://www.microsoft.com/en-us/edge/download/insider?cc=1&cs=426423789&form=MA13FJ). If you don't have an older version, you can download and save the current version, and then try the below steps after a day or two. (2) Eject the DMG from the Finder Sidebar. (3) Switch to the System Settings panel, set the "Default web browser" as Edge Mac Canary just installed. (4) Click a URL link from Notes, it will open in Edge Mac Canary. (5) Navigate to "Settings"->"About Microsoft Edge" in Edge and wait for the update information to show that update is complete (it will auto update to the latest version). (6) Check current result of "Default web browser" in System Settings again. What is the expected result? The "Default web browser" should still be Edge Canary. What happens instead? The "Default web browser" in System Settings will change to Arc. But this time, when you click the link from Notes, it will open in Safari, which means that "Default web browser is shown as Arc, but it is actually Safari. It is worth noting that if you start Edge Mac in step (3) and then set it as Default Browser in the "edge://settings/defaultBrowser" page, this problem will not occur after the update is completed. Chrome Mac has the same issue. Other Please see the video (https://youtu.be/ymWAanLqz1Y) for more details.