Open up the Lua App, open the native browser and navigate to a link that is not within the hardcoded url whitelist (you can usually do this with a few links on the help webpage), notice how the browser appears to be Internet Explorer
System Information:
OS: Windows 10
Expected Behavior
When clicking a link in the browser, that is not within Roblox’s URL whitelist, I would expect it to open up in my default browser, namely, Firefox.
Actual Behavior
The browser that is shown is Internet Explorer, the problem here is that Internet Explorer has been officially discontinued by Microsoft and they’ve recommended using Edge.
I have a bit of experience with IE, so I can tell you it is not possible to open up a link in your default browser unless you give it special permission to do so.
Luckily, the UWP app shines by not having this same issue. I think it uses a different embedded web browser.
I wonder why they built the embedded browser with IE anyway when projects like Chromium exist which are insanely easy to embed with a bit of modification to the original source code.