The problem is finally solved! It wasn't an issue with the .ini file directly, but rather with the automatic configuration generated by PNCconf inside the ukryty `~/.axisrc` file.
For my 1366x768 screen resolution, PNCconf had automatically created a `~/.axisrc` file with a hardcoded window geometry of 1366x640:
root_window.tk.call("wm", "geometry", ".", "1366x640+0+0")
Because I am running a complex setup with a PyVCP side panel and 11 NGCGUI tabs, forcing a vertical size of only 640 pixels caused the Tkinter engine to run out of space. As a result, the bottom bars (tool info, positions) and the right side of the GUI were completely cut off.
To fix it, I edited `~/.axisrc` and updated the geometry to utilize the full height of my screen (leaving a small margin for the hidden OS panel):
root_window.tk.call("wm", "geometry", ".", "1366x740+0+0")
root_window.tk.call("wm", "resizable", ".", "1", "1")
I also set my Debian top desktop panel to "Always hide". Now, the AXIS interface starts in the correct size, scales beautifully, and absolutely nothing is cut off anymore. Thank you everyone for the guidance!