Shadow artifacts when switching workspace

[lonssi]

When I switch the workspace using CTRL+ALT+LEFT/RIGHT ARROW, briefly the window shadows are overlapped on top of the windows.

Here's a recording:
Screencast from 09.09.2022 14.22.31.webm

Screenshot that highlights the problem:

System information:
rounded-window-corners version 6 (bug was also present in version 5)
NVIDIA Quadro T1000 Mobile (Driver Version: 515.65.01)
Ubuntu 22.0.4.1 LTS
GNOME 42.4
X11