So basically I stupidly tried to update while my thinkpad had low battery and it powered off halfway through the update. The system wouldn’t boot because it was complaining that vm-linuz/linux was not found so I performed a chroot-rescue and got it to boot again. I must have messed something up during the process because now the device wlan0 is not showing up in iwctl device list. How can I fix or diagnose this issue? (I am using btrfs if that helps). Has anyone had a similar situation and can lend a hand?
Reboot to the snapshot you took of the root fs before starting the update, then just rerun the upgrade. If you are using btrfs (or ZFS) make use of its features so you never have this sort of problem.