For research studies you are unironically required to write consent forms so a middle schooler can understand them because that’s the average level of comprehension in the USA

Last I had looked into it, although the standard exists, they use their own servers and are not compatible with other rcs implementations

You need to set the scale in the sddm config file. I had the same issue where Kde properly set the theme but not the scaling. Here is a guide from the arch wiki

https://wiki.archlinux.org/title/SDDM#Enable_HiDPI

To find your screen dpi I think there is something in KDE display settings.

Most tame ck2 player