Samuel Sieb composed on 2025-01-17 17:18 (UTC-0800):
If you also have Fedora installed on the hard drive, this will likely conflict, although you could manually add it with a different name.
A different name is configured for Grub2 users in /etc/default/grub as a value for GRUB_DISTRIBUTOR=. You might use GRUB_DISTRIBUTOR="fedora41usb". That would result in a new directory on the ESP partition /EFI/fedora41usb/ along with existing entry /EFI/fedora/, and a corresponding new BBS hotkey boot menu selection of fedora41usb when booting with that USB stick affixed - upon application of your edit. Simply editing /etc/default/grub only changes the file. It takes effect only after it gets "installed" to the ESP and the UEFI BIOS. The specific procedure for that for a USB stick I don't know, but it should be discoverable in man efibootmgr.
BLS I haven't used yet, so I have no idea how to implement name change for its users.