Dimension of angles should be integrated in sketchup, it’s essential for CAD. Extensions like “angular dimensions 2” work, but are saved as parts, so I have hundred angles in my part list. Font size is not adjusted to picture size like in normal dimensions from the dimension-tool.
The dimension of diameters should be 2d and not 3d. They should be aligned to the plane of the measured diameter, so you don’t need adjustments in Layout. There are standards for technical drawings.