Gallery disappears (z-index) in Bootstrap 5 app in fullscreen

[CCCullens]

Hi
My gallery is visible and working well, but not visible if the window is maximized (F11) in Chrome.
Adding this to my stylesheet appears to work
.lg-container { z-index: 2000; position: absolute; }

Is there a better way to ensure the gallery is visible without rebuilding lg.
Using version 2.7.1

thanks