If you're using @kde #plasma on an ultrawide (32:9) monitor, then may I strongly recommend the UltrawideWindows Kwin script.
Allows you to easily snap/tile windows to the center 50% of the screen, or the left/right quarter.
I previously used a portrait-landscape-portrait orientation of three screens. This script allows me to keep my windows management style without re-training my hotkey muscle memory.
Balsillie family social hub.