Netgear ORBI RBX750 usable space?

[Christopher Ng]

hi,

i see support for these was recently added. i have a 3 of these and
i've noticed that the usable space after openwrt is installed is v low
compared to the NAND size...35M in overlay on an RBS750 (256M nand)
and 70M in overlay on an RBR750 (512M nand).

is this related to preserving the factory partitions in case users
want to flash back? i know the netgear r7800/d7800 eventually had the
usable space increased by deleting some of the factory partitions
after it was determined that the factory firmware would recreate them
if they were missing.

cheers,

chris