I was already thinking about stopping giving advice, but you won’t be able to do it without me.
I suggest defeating windowed mode and switching to full screen mode.
The fact is that you programmed the function of changing the size and resolution of the screen in such a way that with the original size of 6x everything is huge like on ps1 (but it’s cool that it’s in full screen) and the inscriptions on the globe are huge and the view in battle is small, but when I switch to 3x then everything is perfect (or almost perfect, even on a small phone), except for the size of the game windows.
In this resolution (1920x1080 3x) the globe looks good (many cities easily fit on the globe and, thanks to small letters, do not block the view), the battlefield is also clearly visible (the game panel is reduced and does not cover a quarter of the screen, the viewing range also increases), but the windows themselves just microscopic, that nothing is visible on the base, that in the settings on the battlefield nothing is visible in a small window (especially on small phones), it’s good that at least the window with the inventory is still on the full screen (they thought of making a separate function so that the inventory would be forced full screen size 6x even if the size of the battlefield is specified as 3x).
I suggest making a separate setting for the size of game windows:
Size Geo mode 3x
Size Battle mode 2x
Size Window mode 6x
Now not only will the soldier’s inventory be full-screen standard 6x, but all windows will be the same as in the original with the same size as the inventory (if desired, you can reduce the size of the windows or even specify the same size as the main 3x or 2x) and the game will work fully in full screen mode.
You can’t think of anything without me, this function should have been added to the game a long time ago, because it will significantly increase the comfort of the game both on computers and on phones (especially on phones, because they have small screens and it costs pay more attention to interface and window size settings).
I suggest starting to create this function now, because all the interface settings are inconvenient (that 6x is too huge, that 3x windows are too small to appear on the screen).
Here's a look at what it looks like on your phone and why you need to do it.
There are more screenshots in the file.