F2FS
F2FS (Flash-Friendly File System) is a flash file system initially developed by Samsung Electronics for the Linux kernel.
The motive for F2FS was to build a file system that, from the start, takes into account the characteristics of NAND flash memory-based storage devices (such as solid-state disks, eMMC, and SD cards), which are widely used in computer systems ranging from mobile devices to servers.

Warning: Using F2FS for the rootfs will cause fsck service to fail, see https://gitlab.alpinelinux.org/alpine/aports/-/issues/17543
Installation
Out of the box Alpine Linux doesnt support making F2FS partitions, that can be added with:
# apk add f2fs-tools
Formatting a partiton using F2FS
You can format a partition using F2FS with the following command:
Note:
/dev/sda1
is used as a example# mkfs.f2fs /dev/sda1
f2fs module

Warning: This section isn't tested (yet): USE AT YOUR OWN RISK
f2fs
may need to be manually added to /etc/mkinitfs/mkinitfs.conf
or?
echo f2fs >> /etc/modules