isn`t rolling back a bit drastic as a workaround ?
And is the real issue not nvidia-dkms package?
do you all run nvidia GPU and nvidia-dkms package is used?
on telegram users having this switching to the default non-dkms nvidia packages solves the issue …
Ctrl+Alt+F3 (to login into TTY)
sudo pacman -R nvidia-dkms
sudo pacman -Syu nvidia (or also nvidia-lts if LTS kernel is used)
And logs? my friends where the hell are the LOGS 
journalctl -b -0 | eos-sendlog
inxi -Ga | eos-sendlog