--- Comment #22 from Takashi Iwai firstname.lastname@example.org --- Well, this doesn't sound right. First off, if you want to have the split kernel-firmware-* packages on the media, keeping Requires:kernel-firmware makes no sense. kernel-firmware is an all-in-one package containing the *all* raw uncompressed firmware files. You have to drop it from patterns at first.
After that, you can put individual kernel-firmware-* packages -- but only if you really want to manage that. For example, with this SR, you still don't put the kernel-firmware-amdgpu; hence the installation on AMD graphics chip would lead to a blank screen. Similarly, the lack of kernel-firmware-bluetooth leads to the lack of BT, the lack of kernel-firmware-ath11k would miss the recent Atheros chip, etc, etc.
And, the fact that you have had already kernel-firmware on the media indicate that the media size won't change so much even if you replace it with kernel-firmware-all. kernel-firmware-all is just a meta package of kernel-firmware-* subpackages, and again, kernel-firmware already contains all of those files in it without split. (There is slight difference due to the compression over compressed files, and of course some overhead due to metadata amount, but that's all.)
So, my recommendation is to replace Requires:kernel-firmware with Requires:kernel-firmware-all. Or if we want to reduce some firmware files, maybe it's better to create a new pattern-firmware-desktop or such and specify the needed ones there. It'll be useful for the normal installation, not only on MicroOS Desktop, too.