The "Limit window proportions on resize" option is active. I usually use it in window mode and I use it with
default windows settings.
When I want to adjust it to the applications I use, the zoom options often fall short, because it's either too big or too small. It is also difficult to adjust with the mouse. I thought it could be adjusted quickly with "Zoom +/-".
I wrote the key combinations as an example. It doesn't need to be the default.