Since I own a Tuxedo Aura 15 Gen1 I had some serious Wifi speed problems (using the built in Intel AX200 chipset): being connected over Wifi the download speed was terribly slow. With some tweaks I just managed to reach 20MBit.

While there are many threads out there about this topic (mainly on Reddit) none of the solutions worked for me. After upgrading to Ubuntu 22.04 I hoped this issues would disappear (due to a more recent kernel), but literally nothing changed.

Finally I found a kernel module option which unleashed the full speed of the built in Intel AX200 chipset. You need to put the following configuration to the iwlwifi kernel modules (e.g. /etc/modprobe.d/iwlwifi.conf):

# /etc/modprobe.d/iwlwifi.conf
# iwlwifi will dyamically load either iwldvm or iwlmvm depending on the
# microcode file installed on the system.  When removing iwlwifi, first
# remove the iwl?vm module and then iwlwifi.
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211

options iwlwifi disable_11ax=Y

After saving this file, you just need to re-load the kernel module by executing the commands:

$ sudo rmmod iwlmvm iwlwifi
$ sudo modprobe iwlwifi