Installing the UGREEN BE6500 WiFi 7 USB Dongle on Arch Linux

I had a problem where the integrated WiFi 7 adapter on my MSI motherboard would randomly just… disappear… from the system. As in, completely drop off the PCI bus and not show up again until I’d completed a couple of rounds of clearing the CMOS, and even then, it was a bit temperamental as to how many times I’d need to go through the dance. Annoyingly there was no rhyme or reason as to when this would happen. Could be 6 days between episodes, could be 6 weeks or more. Thankfully there was a dedicated button on the back of the motherboard and I didn’t have to open up the case and mess with jumpers every time, but it was still a faff. After losing a couple of hours to the latest failure, I broke and bought a USB WiFi dongle, specifically, this UGREEN dongle (affiliate link). Now, I admit, I didn’t do as much research as I might normally do if I was less annoyed, but I trusted in the modern state of Linux distros and WiFi drivers. It couldn’t be as bad as the days of ndis_wrapper and…