I did but that way i could not trace the actual issue, and no, is not happening on new user/profile, and i want it to work on my profile 
That sounds interesting, will look into it at least to understand more.
KWaylandServer has been merged with KWin so kwayland-server package was removed, so that got me a bit confused as i don’t use wayland and i saw no connection with my issue in that regard, but then
Still investigating, so i will not mark this as solved, but inside the ~/.config/kwinrc once i remove lines like:
[Compositing]
GLCore=true
GLTextureFilter=0
and
[Desktops-screen--1]
Id_1=5c37c6d7-73ae-4147-83e8-84050227381f
Number=1
Rows=1
this one has like 20 iterations
or
[DrmOutputs][e1343590-d8a1-5bd2-ba2b-c5fc2f6c1319][e1343590-d8a1-5bd2-ba2b-c5fc2f6c1319]
Mode=1920x1080_59934
Scale=1
Transform=normal
and
[SubSession: 1721a639-a198-4ec8-951e-1b7d116d322f]
active=-1
count=0
all gets back to normal.
Also i compared with a newly created profile while doing all my tweaks, to confirm if i’m on the right track. Funny fact, the new config has 61 lines and old config has 233 lines, both supposedly should do the same thing, but the old one is bonkers.
Still doing reboots and trying to reproduce the issue, but is no longer happening. Will see more tomorrow.