default or selected kernelversion does not have config value CONFIG_CRYPTO_ZLIB.
Result is shown for kernelversion 6.5.1
Zlib compression algorithm
modulename: zlib.ko
configname: CONFIG_CRYPTO_ZLIB
Linux Kernel Configuration
└─>Cryptographic API
└─>Zlib compression algorithm
In linux kernel since version 2.6.30 (release Date: 2009-06-09)
This is the zlib algorithm.