I'm afraid this goes in my opinion a little beyhond the normal support we can provide.
You should check your desktop files and autostart entries.
Also the .sh scripts should be checked. E.g. (even if this is an extreme example) sometimes people forget to add #!/bin/sh as first line and make it executable.
If necessary, check a few info in the Arch Wiki https://wiki.archlinux.org/title/KDE#Autostart.
Also search in the forum.
For example for libinput I remember this one (but it is not necessarily the same problem):
https://forum.garudalinux.org/t/how-to-setup-libinput-gestures-in-kde/13411/11
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