This is a little bit strange, but the code editor doesn't wrap long lines for me. I can't find a setting in the IDE for it, and I can see that the B4A IDE does indeed wrap, so I'm guessing this is a bug?
Example with wide window, where no wrap is needed:
And with a reduced window width:
And, for comparison, the same sub in B4A (with reduced window width):
I would never ever have suspected word wrap had anything to do with picking a font. (Same goes for tab size, by the way.) There might be room for a small improvement of the UX here.