Please do a little research before trying random stuff. After checking to see if you are actually using the iwlwifi module, why not find out a bit about whether the mentioned param. is available to you and what it does:

Am I using the module. If the output from this is blank, then no:

$ lsmod | grep iwlwifi
iwlwifi               622592  1 iwlmvm
cfg80211             1331200  3 iwlmvm,iwlwifi,mac80211

Also verify with lspci -k as above:

$ lspci -k | grep iwlwifi -A2 -B2
        DeviceName: WLAN
        Subsystem: Intel Corporation Raptor Lake PCH CNVi WiFi
        Kernel driver in use: iwlwifi
        Kernel modules: iwlwifi
00:15.0 Serial bus controller: Intel Corporation Alder Lake PCH Serial IO I2C Controller #0 (rev 01)
        Subsystem: Hewlett-Packard Company Alder Lake PCH Serial IO I2C Controller

# modinfo iwlwifi
   ...
parm:           swcrypto:using crypto in software (default 0 [hardware]) (int)
parm:           11n_disable:disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX (uint)
parm:           amsdu_size:amsdu size 0: 12K for multi Rx queue devices, 2K for AX210 devices, 4K for other devices 1:4K 2:8K 3:12K (16K buffers) 4: 2K (default 0) (int)
parm:           fw_restart:restart firmware in case of error (default true) (bool)
parm:           nvm_file:NVM file name (charp)
parm:           uapsd_disable:disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3) (uint)
parm:           enable_ini:0:disable, 1-15:FW_DBG_PRESET Values, 16:enabled without preset value defined,Debug INI TLV FW debug infrastructure (default: 16) (uint)
parm:           bt_coex_active:enable wifi/bt co-exist (default: enable) (bool)
parm:           led_mode:0=system default, 1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0) (int)
parm:           power_save:enable WiFi power management (default: disable) (bool)
parm:           power_level:default power save level (range from 1 - 5, default: 1) (int)
parm:           disable_11ac:Disable VHT capabilities (default: false) (bool)
parm:           remove_when_gone:Remove dev from PCIe bus if it is deemed inaccessible (default: false) (bool)
parm:           disable_11ax:Disable HE capabilities (default: false) (bool)
parm:           disable_11be:Disable EHT capabilities (default: false) (bool)

sysfs is a pseudo filesystem with lots of info in it. cat the files here:

$ ls -l /sys/module/iwlwifi/parameters/

... to see what your current values are set at. You can install sysfstools and run this for a neat report:

$ systool -vm iwlwifi
Module = "iwlwifi"

  Attributes:
     ...
  Parameters:
    11n_disable         = "0"
    amsdu_size          = "0"
    bt_coex_active      = "Y"
    disable_11ac        = "N"
    disable_11ax        = "N"
    disable_11be        = "N"
    enable_ini          = "16"
    fw_restart          = "Y"
    led_mode            = "0"
    nvm_file            = "(null)"
    power_level         = "0"
    power_save          = "N"
    remove_when_gone    = "N"
    swcrypto            = "0"
    uapsd_disable       = "3"

Just throwing this out there: on my hardware, this improves my upload but hurts my download speeds. There could possibly be reasons why it’s not set by default.

Not sure if this is the same setting but a linux podcast noted one setting was not set by default (for speed) in order to keep power consumption lower

Thank you for posting this, I'll give it a try tonight.