All our official kernels: linux, linux-lts, linux-zen and linux-hardened, do not install the actual kernel to /boot anymore.
The installation is done by mkinitcpio hooks and scripts, as well as removals. There is no need for any manual intervention.
The intention is to make the kernel packages more self-contained, as well as making the boot process more flexible, while also keeping it backwards compatible.
As of now, only mkinitcpio has hooks for handling kernels installations and removals. We do not ship any for dracut yet, but it will have similar hooks in the near future.