Like the rootfs does expand when you expand the disk image but using a 1k block size and not having large_dir enabled is a weird choice, especially since both amd64 and aarch64 use at least 4k pages (the latter also supporting 16k and 64k).
Also the smaller kernel is cool but weird to strip out wireguard support, which I'd imagine is not an uncommon use case in cloud VMs.
Maybe the "baremetal" images are actually better if they have the standard kernel but I'll need to test that. I'm guessing the virt images are for like microvm-like scenarios
Also would be nice if they had qemu-guest-agent installed and enabled but I could see that being a potential issue on non qemu-based hypervisors like VMware for instance