background windows acrylic

[1111Al]

[ ] This is not about other apps being displayed weird or etc.
[ ] This is not about rendering issues that caused by a bug in the Windows.
[ ] I've read FAQ.
[ ] I've checked other issues and this is not a duplicate.

Describe the bug
Acrylic effect for background windows doesn't work

To Reproduce
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4. See error

Expected behavior
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Windows Version
E.g. Windows 10 build 19042, Windows 11 Build 22000, Windows 11 Build 25217 Insider Dev Channel, ...

Additional context
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If I set the acrylic for the background windows as well, it doesn't work, and the foreground window also loses the acrylic effect.