[sudobash1]

There are mainstream distros that don't have config.gz. Fedora is one of them. But it keeps a copy of it's config next to the kernel. If you don't have /proc/config.gz try this:

grep CONFIG_DRM_PANIC_SCREEN_QR_CODE /boot/config-$(uname -r)

(Fedora is enabling the DRM panic screen QR code)