Did you manually partition? It sounds like when you installed Nobara the /boot/efi partition got formatted, a similar thing happened to me recently (just wasnt paying attention), I used a Windows install USB to get a command prompt and restore the EFI entry.
Did you manually partition? It sounds like when you installed Nobara the /boot/efi partition got formatted, a similar thing happened to me recently (just wasnt paying attention), I used a Windows install USB to get a command prompt and restore the EFI entry.