default or selected kernelversion does not have config value CONFIG_EXT4DEV_FS_POSIX_ACL.
Result is shown for kernelversion 5.3.7

Ext4dev POSIX Access Control Lists

configname: CONFIG_EXT4DEV_FS_POSIX_ACL

Linux Kernel Configuration
└─>File systems
└─>Ext4dev POSIX Access Control Lists
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
POSIX Access Control Lists (ACLs) support permissions for users and
groups beyond the owner/group/world scheme.

To learn more about Access Control Lists, visit the POSIX ACLs for
Linux website <http://acl.bestbits.at/>.

If you don't know what Access Control Lists are, say N