Can't login on Plasma desktop

It could be due to some recent package update or partial broken update from my side? Blindly reinstalled linux, linux-lts.
It showed “fatal library error lookup self” when I search about that Google showed me this Multiple issues including booting problem, seemingly broken file and fatal library error - #3 by anonymous_12332 result on top.

Desperately I tried that

pacman -Syu $(pacman -Qnq) --overwrite “*”

Changed password again but not yet successful :frowning: