Hi @philm @Yochanan @linux-aarhus ,
As I saw there:
https://gitlab.manjaro.org/release-plan/packaging/-/issues/13
AFAIK linux-meta package will apparently do a pacman -R ($packagelist) to remove the old kernel and the old kernel-extra_modules when they will be replaced by a new stable enough kernel and extra_modules.
But, isn’t be better to do a pacman -Rns ($packagelist) this way old linux*.preset in /etc/mkinitcpio.d/linux*.preset that will become obsolete will be removed too?
Wish You well