net8 sr9 Win Platform Memory leak when multiple windows get closed

[jingliancui]

Description

Beginning memory about 106M

After open 100 windows about 503M

After closed 100 windows about 456M

Steps to Reproduce

Open the .sln by using vs2022 F5 to start debug the project Input a number 100 to the Entry Control Click the button "new windows" Observe the "Process Memory" part of the VS tool "Diagnostic Tools", the memory increase Click the button "Close all windows" Continue repeat step 4 to step 6

Link to public reproduction project repository

https://github.com/jingliancui/MAUIWinUIWinMemoryLeakIssue

Another native winui3 sampleapp, It looks like winui3 also have this issue WinUINativeSampleApp.zip

Version with bug

8.0.90 SR9

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

Relevant log output

No response