That sounds like the splash screen. You can select none in Settings -> System Settings - Colours & Themes -> Splash Screen to get rid of it.
It's an active part of the splash screen. I don't want to get rid of it. Since it only lasts a short time - much less than the whole splash screen, I was wondering if something particular was being done while it is displayed.
I have occasionally disabled splash screens and watched all the startup log entries fly by, but I don't want to see that unless something is seriously broken and I need to figure out what.
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