... which sets the angular tolerance to a smaller number for you (on the right). The thought process was that in most cases, this shape isn't needed so it is better to optionally leave it as it is, unless you check this.

Here's the result:

Note the little lines though - this is due to this being off:

Result if unchecked (might be nominal but in theory, nothing under 10 thou in length):

Having this unchecked is slower, of course, so it depends honestly on the machine tool. If you have it checked, to skip, you get this warning: