[Making a guess where to report this...] When trying to grab the edge of a window to resize it, it is very difficult to "hit" the edge in order the grab it. I've been unable to find a setting for such a feature which I would probably call "Edge grab snap size" or somesuch. Windows snapping to screen edge or other windows is interesting; but the ability to grab the edge of a window needs improvement. I've just upgraded to a new machine with a 1920x1080 screen and it's even more difficult to find the one(?) pixel edge to grab onto.
The setting you are looking for is: Application Style > Window Decorations > Configure Decoration > Border Size
For the record... finally found it (4.11.4), well hidden, in Workspace Appearance > Window Decorations > Configure Decoration > General > Border Size where I found {No Border,No Side Borders,Tiny,Normal,Large,Very Large,Huge,Very Huge,Oversized} while almost missing it because I was searching for a numeric value... Thanks for the clue!!