zswap

If I run cat /boot/config-5.16.1-1-default | grep -i swap It returns CONFIG_ZSWAP=Y cat /sys/module/zswap/parameters/enabled returns N So the kernel supports zswap but it is currently NOT enabled. When system is booted the following journal message appears kernel: zswap: loaded using pool lzo/zbud ps aux | grep -i zswap returns root 135 0.0 0.0 0 0 ? I< Feb09 0:00 [zswap-shrink] If zswap is NOT enabled, why is zswap loaded with a pool at boot time and why is the zswap-shrink process running? I find that the same situation on a TW test machine I have that is running the 5.16.5.2 kernel so it is not an isolated case. Is this a bug?