Why do some fonts appear zoomed in after system update?

Since the last system update, for various applications the font size has increased. Even one application for which I can be sure, that it has not been replaced, because I have a custom version and install it from source (see dmenu ). ![Increased DMenu-Font ][2] As you can see in the picture, the font for dmenu appears ridiculously large. The screenshot also shows which font was specified in the source code and the output of fc-list, which indicates, that the font is installed. Some other applications (such as gimp) show a similar phenomenon. ![Gimp ridiculous font size ][3] The overall resolution is full hd 1920x1080. What happened and how can I reverse it? It is surprising to me, that some applications such as the terminal (alacritty) or VS Code still render fine. I already checked here and made sure that no nvidia drivers are installed (ie. sudo pacman -Q | grep nvidia shows no output)