I recently installed Manjaro-kde & after trying to install the nvidia drivers for my nvidia 210 from the system settings,the os seems to get stuck during boot.I had to remove those nvidia drivers & install those default drivers back again for it to boot.But it was working fine for me on Manjaro-gnome.
Stuck where, at what point? You could switch TTY's, SDDM did not start ? From TTY, as your user, you could make use of
Well,to that booting screen where its starting different processes,
The last process was "TPL system startup/shutdown"