[Windows]Clicking on Snackbar should not open a new instance of the application

[BaY1251]

Description

When clicking on Snackbar, a new instance of the application should not be opened
for example, when using WPF, the notification displayed by calling TaskbarIcon.ShowBalloonTip will not open a new instance

Steps to Reproduce

None

Link to public reproduction project repository

None

Version with bug

8.0.3

Is this a regression from previous behavior?

Not sure, did not test other versions

Last version that worked well

Unknown/Other

Affected platforms

Windows

Affected platform versions

No response

Did you find any workaround?

No response

Relevant log output

No response

[drasticactions]

This is the default WinUI 3 behavior. WinUI 3 apps are multiple instances by default, allowing you to launch unique instances of the app. There are ways to disable that, and there could be better ways within MAUI to make that more straightforward for how to do it.

[BaY1251]

Thank you. This solution is a bit strange , I may use a sample Mutex ?!

[mattleibow]

I created a small sample showing how to make a MAUI app be a single instance: https://github.com/mattleibow/MauiSingleInstanceApp

[mattleibow]

Duplicate of #9973

[BaY1251]

Thank you, its really a better way