For some reason the icon size in my taskbar decreased and the weird thing is, that it restores to normal whenever I play a videogame in fullscreen and tab out of it. Why has this changed and how can I restore the normal icon size?
I'm using Plasma 5.20.4 on Arch Linux with kernel 5.9.14-arch1-1-vfio.
And this is how it look at the moment:

And this is how it's supposed to look:

Push, since this is still an issue and it's really annoying. Doesn't anybody have any idea? I already deleted every config-directory related to KDE Plasma but nothing helps.
EDIT: I tried uninstalling plasma-desktop, rebooting an installing again which worked on my desktop. I had to create a new taskbar afterwards so maybe deleting the taskbar and creating a new on might also just solve this!