Dell XPS 13 9310 reports BIOS Bug & WiFi issues

On a fresh installation of Fedora 33 on the Dell XPS 9310, a kernel bug is reported in dmesg which apparently affects the initialization of the QCA6390 WiFi card that's on this system. I couldn't find any way to report a bug to Dell's BIOS team so wanted to see if anybody had any experience in reaching to them.

dmesg reports:

Dec 02 19:56:20 localhost.localdomain kernel: DMAR: [Firmware Bug]: Your BIOS is broken; DMAR reported at address 0!
BIOS vendor: Dell Inc.; Ver: 1.1.1; Product Version: