I’m using JabRef 5.7 on Debian 11, running GNOME 3.38. A feature accessible through GNOME Tweaks is font scaling, which is meant to scale all font sizes in the system, including apps that are properly integrated. This is useful for accessibility and display changes. JabRef seems irresponsive to font scaling.
Full version:
JabRef 5.7–2022-08-05–73c111c
Linux 5.10.0-18-amd64 amd64
Java 18.0.2
JavaFX 18.0.1+2