I am using
qt version - 5.15.2
KDE Frameworks version - 5.88.0
KDE Plasma version - 5.23.3
And graphics platform - X11
Kernel Version-5.15.4-arch-1-1 (64 bit)

Whenever I shutdown my pc I get a message like this -
https://bugsfiles.kde.org/attachment.cgi?id=143507
And it takes 2 to 3 minutes for my pc to shutdown I don't know why. This is my Journalctl log - http://ix.io/3G3o. I asked people in arch forums and people said that it was a kde bug -
https://bbs.archlinux.org/viewtopic.php ... 0#p2002140 , https://bugs.kde.org/show_bug.cgi?id=445385 , https://bbs.archlinux.org/viewtopic.php?id=259577
Any clue?

Please follow the instructions on this bug report: https://bugs.kde.org/show_bug.cgi?id=445385
The forum is not meant for solving bugs, that's what bugs.kde.org is there for.