How are windows continuing to render with translucent backgrounds when transparency is disabled?

Disabling blur has worked to demonstrate it:

…because disabling transparency does not appear to work:

I’ve attempted to screenshot it via spectacle’s “Active window” mode:

[1]

However, it solely renders outside of that:

[1:1]

My Environment

Operating System: Fedora Linux 44
KDE Plasma Version: 6.6.5
KDE Frameworks Version: 6.26.0
Qt Version: 6.11.1
Kernel Version: 7.0.9-202.fc44.x86_64 (64-bit)
Graphics Platform: Wayland

  1. t/47168 ↩︎ ↩︎

Related?

@claydoh, thanks, although it might be coincidence: