Maintainers for efi-shell-x64 are Debian QEMU Team <[email protected]>.
You may want to refer to the following packages that are part of the same source: efi-shell-aa64, efi-shell-arm, efi-shell-ia32, efi-shell-loongarch64, efi-shell-riscv64, ovmf, ovmf-amdsev, ovmf-generic, ovmf-ia32, ovmf-inteltdx, qemu-efi, qemu-efi-aarch64, qemu-efi-arm, qemu-efi-loongarch64, qemu-efi-riscv64.
You might like to refer to the efi-shell-x64 package page, to the Package Tracking System, or to the source package src:edk2's bug page.
If you find a bug not listed here, please report it.