https://gitlab.synchro.net/main/sbbs/-/issues/588#note_3724
This is by design. However, you can now set ciolib_initial_scaling to be a value below 1.0 which sets the scaling factor relative to the display size.
--- SBBSecho 3.20-Linux
* Origin: Vertrauen - [vert/cvs/bbs].synchro.net (1:103/705)