Plasma 6 font rendering issue in System Settings

[spica]

I observe an issue with font rendering in System Settings

https://i.postimg.cc/zDGnnGqm/Screenshot-20240920-101727-1.png

I reproduced under a new user account too.

I use plasma-meta
Display & Monitor -> Scale = 150%
Font settings https://i.postimg.cc/pXTMbzx0/Screenshot-20240920-103010.png

Profile is combined gentoo:default/linux/amd64/23.0/desktop/plasma + gentoo:default/linux/amd64/23.0/no-multilib


Is this a known issue? I understand Plasma 6 is out just recently, and something may appear here and there, but if this can be easily fixed then I am happy to know about that.