It's 2021 and I'm still trying to help my Dad get wireless working under Debian on his laptop remotely.
Dear laptop hardware manufacturers: please stop using crappy new proprietary chipsets that don't have in-tree drivers yet. This doesn't even look like missing firmware, because Debian have a nonfree spin of the live image these days.
Also everything about BIOS vs UEFI boot continues to be an absolute mess in random consumer PCs.
This particular one seems to UEFI-boot off the internal drive, but only MBR-boot off USB sticks. This confuses the Debeans.