How to get the latest ubuntu image for Beaglebone Black (via MicroSD Card)?

I asked because here the images have 2 categories: microSD and eMMC

Media bbai64 Xfce Snapshot
microSD Download bbai64-debian-11.5-xfce-arm64-2022-11-01-10gb.img.xz 9
microSD sha256sum 0b1fb2a41cdfd73e038f1216566639c3c061d30a412062dfbd616aa0f79a1a17
eMMC Download bbai64-emmc-flasher-debian-11.5-xfce-arm64-2022-11-01-10gb.img.xz 4
eMMC sha256sum 6a2bd845683ff0fed4cf1c1f073de17d5798b5b146ee561bd8aa11c0d4863868

I thought that the eMMC version was used to permanently flash the eMMC, and the microSD to only boot from the SD card.