Test transforms.Rotate of J2Ddemo draws different than opengl with metal pipeline.
The test was run with Anti-Aliasing.
Screenshot is attached.
The left side of screenshot is with opengl and right side is with metal

[6-Jul-2020]
Similar issue is observed while testing on external monitor connected to mac-book pro 13" having integrated graphics.
Anti-Aliased rendering with Metal differs from OGL. (See attached screenshots of curve & clip demos - left window shows OGL rendering - right window shows Metal rendering)