I would like to have a wlan connection to the desktop but it does not have a wlan, my laptop is wlan, and I have a Huawei 525s 4g modem, how do I do it, I do not know about these? https://www.asus.com/Networking/USB-AC68/overview/ Is this suitable?
You install a wireless adapter into the desktop to allow it to connect to your network. There are many USB, PCIe, and PCI makes/models available. What is your budget?