Opacity gets higher when there is a fullscreen app on current workspace

[TheSketty]

Hyprland 0.52.2

For some reason my picture in picture changes its opacity when I go into fullscreen mode.
If I check its alpha through getprop, it doesn't change. But visually it does.

It has been like this since I begin using Hyprland (somewhere in September), but only now I managed to report it.

hyprctl_systeminfo.txt