Gen 9, base i5 model

Generally these UEFI logos are some kind of a standard - search for “UEFI BGRT” to find out more. But it’s up to the vendor whether to allow (or usually not) changing them.

ThinkPads are somewhat special in this regard - the firmware package includes a README.TXT which says:

 *  THIS VERSION OF THE FLASH UPDATE PROGRAM GIVES THE OPTION OF      *
 *  REPLACING (OR ELIMINATING) THE DEFAULT "LENOVO" IMAGE THAT IS     *
 *  DISPLAYED DURING SYSTEM START UP.                                 *

…and then proceeds to list instructions which don’t work 😉

I don’t think Dell has this as a feature of the firmware update tool.