Of course, if you wish, you could return the laptop and request that you instead receive a replacement equipped with the captioned Intel AX200. As well, you could easily install the correct driver for your Realtek device.

With a temporary internet connection by ethernet, tethered or whatever means possible, open a terminal and do:

sudo apt update

sudo apt install -y git build-essential

git clone https://github.com/lwfinger/rtw89.git

cd rtw89

make

sudo make install

sudo mkdir /usr/lib/firmware/rtw89

sudo cp  rtw8852a_fw.bin  /usr/lib/firmware/rtw89/

sudo modprobe rtw89pci

Your wireless should now be working.

EDIT: From time to time, when security flaws are corrected, when bugs are fixed or when new features are added, Update Manager will offer updates that include ‘Complete Linux Image’, that is, a newer kernel version than that installed today. After the update is installed, you will be prompted to restart to complete the update. After you restart, your wireless will no longer be working. To restore the wireless, open a terminal and do:

cd ~/rtw89

git pull

make

sudo make install

sudo modprobe rtw89pci

Please retain the rtw89 file and these instructions for that time.

At some future time, the rtw89 suite of drivers will be included in the latest kernels and this process will no longer be required. We haven’t yet any idea when that may occur.