According to Android Authority, OnePlus achieves this optimization by resizing the “super” partition, which holds critical system files across various sub-partitions. Android devices use a set ...

All devices launching with Android 13 or later will have to use Huawei’s EROFS file system format for read-only partitions if they want to ship with access to Google’s services and the Play Store.

UPDATE: It seems like Google changed its mind. EXT4 and F2FS will also be allowed, according to Mishaal Rahman. The EROFS file system format could help save storage space on Android 13 devices ...