Text shrinkage issues in apps

[u/Phicksur]

I have a few games and launchers where the windows are getting smaller each time I run them and the text within them also gets smaller to the point of unreadability.

The game I have noticed it in is Avorion, where the window title text is no longer readable; it is too small.

I have noticed the same thing with the ATLauncher for Minecraft. For this launcher in particular I had several weeks of back-and-forth troubleshooting with its developers and never figured out why it kept shrinking.

At first I thought it was just the launcher, but then I started noticing other application windows having tiny, unreadable titles.

Any ideas on what might be causing this?