All depends on what one is used to. On Linux I've had to fight with window borders so narrow by default (on whatever Ubuntu Studio uses) that they practically couldn't be resized. You had to aim at like one pixel. I read somewhere that a window could be resized by holding Alt and clicking with the middle mouse button... but on a Mac you never need to hold down keys and have a three-button mouse to do something that basic.
> but on a Mac you never need to hold down keys and have a three-button mouse to do something that basic
That's really not true at all, even for that exact thing. macOS still has very small clickable areas for resizing a window. Unless an app has focus, you don't even get the little two-sided arrows. And apps that are in dark mode basically all blend together because macOS either has no borders or like 1 pixel wide since macOS relies on shadows delineating windows, which only works for windows that are primarily light colors.
Ugg, I hate that. On Mac OS as well. Windows 8 had something like a 10px border that looked great. Tried to do the same on linux - modify some defaults - and it worked for a while until... it stopped working and I haven't been able to fix it.
But seriously - just make that configurable! Then everybody can be happy with their own settings. But no.... the new hotness is no usability for anybody.