The setup is NUC7i5, Samsung S34E790C display, and a HDMI cable OR USB-C to DisplayPort cable (ALOGIC)
When the display is connected via HDMI cable, on boot I see the "Intel NUC" splash screen then the Windows 10 Home splash screen. When it is connected via USB-C, on boot the "Intel NUC" splash screen is not displayed then the Windows splash screen is.
When connected via HDMI, BIOS interface displays as expected. When connected via USB-C, BIOS interface does not display.