CONFIG_DM_VDO is not available for thedefaultarchitecture x86.
Result is shown for architecture 64BIT

VDO: deduplication and compression target

modulename: dm-vdo.ko

configname: CONFIG_DM_VDO

Linux Kernel Configuration
└─>Device Drivers
└─>Multiple devices driver support (RAID and LVM)
└─>VDO: deduplication and compression target
In linux kernel since version 4.19.314 (release Date: 2024-05-17)  
This device mapper target presents a block device with
deduplication, compression and thin-provisioning.

To compile this code as a module, choose M here: the module will
be called dm-vdo.

If unsure, say N.

source code: