default or selected kernelversion does not have config value CONFIG_MAC80211_DEFAULT_PS.
Result is shown for kernelversion 5.15.31

enable powersave by default

configname: CONFIG_MAC80211_DEFAULT_PS

Linux Kernel Configuration
└─>Networking support
└─>Wireless
└─>enable powersave by default
In linux kernel since version 2.6.31 (release Date: 2009-09-09)  
This option enables powersave mode by default.

If this causes your applications to misbehave you should fix your
applications instead -- they need to register their network
latency requirement, see